initial public commit
This commit is contained in:
@ -0,0 +1,450 @@
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/*-
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* ~~~~~~licensing~~~~~~
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* schema-component
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* ==========
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* Copyright (C) 2020 - 2021 EmDev LLC
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* ==========
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* ~~~~~~/licensing~~~~~~
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*/
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package ru.entaxy.esb.system.registry.schema.component;
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import org.apache.camel.*;
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import org.apache.camel.converter.jaxp.XmlConverter;
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import org.apache.camel.support.AsyncProcessorHelper;
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import org.apache.camel.support.processor.validation.DefaultValidationErrorHandler;
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import org.apache.camel.support.processor.validation.SchemaValidationException;
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import org.apache.camel.support.processor.validation.ValidatorErrorHandler;
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import org.apache.camel.util.IOHelper;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.w3c.dom.Document;
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import org.w3c.dom.Node;
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import org.w3c.dom.ls.LSResourceResolver;
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import org.xml.sax.SAXException;
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import org.xml.sax.SAXParseException;
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import ru.entaxy.esb.system.registry.schema.component.exception.SchemaNotFoundException;
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import ru.entaxy.esb.system.registry.schema.component.util.SchemaReaderFromDB;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.parsers.ParserConfigurationException;
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import javax.xml.transform.Result;
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import javax.xml.transform.Source;
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import javax.xml.transform.dom.DOMResult;
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import javax.xml.transform.dom.DOMSource;
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import javax.xml.transform.sax.SAXResult;
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import javax.xml.transform.sax.SAXSource;
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import javax.xml.transform.stax.StAXSource;
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import javax.xml.transform.stream.StreamSource;
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import javax.xml.validation.Schema;
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import javax.xml.validation.SchemaFactory;
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import javax.xml.validation.Validator;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.URL;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.concurrent.CompletableFuture;
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/**
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* A processor which validates the XML version of the inbound message body
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* against some schema either in XSD or RelaxNG
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*/
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public class ValidatingProcessor implements AsyncProcessor {
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private static final Logger LOG = LoggerFactory.getLogger(ValidatingProcessor.class);
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private final SchemaReaderFromDB schemaReaderFromDB;
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private ValidatorErrorHandler errorHandler = new DefaultValidationErrorHandler();
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private final XmlConverter converter = new XmlConverter();
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private boolean useDom;
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private boolean useSharedSchema = true;
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private boolean failOnNullBody = true;
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private boolean failOnNullHeader = true;
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private String headerName;
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private String uri;
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private final Map<String, Schema> schemaMap = new HashMap<>();
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public ValidatingProcessor() {
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schemaReaderFromDB = new SchemaReaderFromDB();
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}
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public ValidatingProcessor(SchemaReaderFromDB schemaReaderFromDB, String uri) {
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// schema reader can be a singelton per schema, therefore make reuse, see ValidatorEndpoint and ValidatorProducer
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this.schemaReaderFromDB = schemaReaderFromDB;
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this.uri = uri;
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}
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public void process(Exchange exchange) throws Exception {
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AsyncProcessorHelper.process(this, exchange);
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}
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public boolean process(Exchange exchange, AsyncCallback callback) {
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try {
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doProcess(exchange);
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} catch (Exception e) {
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exchange.setException(e);
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}
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callback.done(true);
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return true;
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}
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@Override
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public CompletableFuture<Exchange> processAsync(Exchange exchange) {
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return null;
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}
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protected void doProcess(Exchange exchange) throws Exception {
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Schema schema = null;
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Validator validator = null;
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if (uri != null && !uri.isEmpty()) {
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schema = getOrCreateSchema(schemaReaderFromDB.getSchemaResourceUri());
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validator = getValidator(schema);
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}
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// the underlying input stream, which we need to close to avoid locking files or other resources
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Source source = null;
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InputStream is = null;
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try {
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Result result = null;
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// only convert to input stream if really needed
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if (isInputStreamNeeded(exchange)) {
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is = getContentToValidate(exchange, InputStream.class);
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if (is != null) {
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source = getSource(exchange, is);
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}
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} else {
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Object content = getContentToValidate(exchange);
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if (content != null) {
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source = getSource(exchange, content);
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}
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}
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//CAMEL-7036 We don't need to set the result if the source is an instance of StreamSource
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if (source instanceof DOMSource) {
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result = new DOMResult();
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} else if (source instanceof SAXSource) {
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result = new SAXResult();
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} else if (source instanceof StAXSource || source instanceof StreamSource) {
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result = null;
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}
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if (source != null) {
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if (validator == null) {
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String namespace = "namespace:" + getNamespace(source);
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schemaReaderFromDB.setSchemaResourceUri(namespace);
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schema = getOrCreateSchema(namespace);
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validator = getValidator(schema);
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}
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if (validator == null)
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throw new SchemaNotFoundException("Schema not found for {" + schemaReaderFromDB.getSchemaResourceUri() + "}");
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// create a new errorHandler and set it on the validator
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// must be a local instance to avoid problems with concurrency (to be
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// thread safe)
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ValidatorErrorHandler handler = errorHandler.getClass().newInstance();
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validator.setErrorHandler(handler);
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try {
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LOG.trace("Validating {}", source);
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validator.validate(source, result);
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handler.handleErrors(exchange, schema, result);
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} catch (SAXParseException e) {
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// can be thrown for non well formed XML
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throw new SchemaValidationException(exchange, schema, Collections.singletonList(e),
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Collections.emptyList(),
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Collections.emptyList());
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}
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}
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} finally {
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IOHelper.close(is);
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}
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}
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private String getNamespace(Source source) throws ParserConfigurationException, IOException, SAXException {
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StreamSource domSource = (StreamSource) source;
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domSource.getInputStream();
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DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
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factory.setNamespaceAware(true);
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DocumentBuilder builder = factory.newDocumentBuilder();
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Document document = builder.parse(domSource.getInputStream());
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return document.getDocumentElement().getNamespaceURI();
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}
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private Schema getOrCreateSchema(String resourceUri) throws IOException, SAXException {
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if (!schemaMap.containsKey(resourceUri) && resourceUri != null && !resourceUri.isEmpty()) {
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schemaMap.put(resourceUri, createSchema());
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}
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return resourceUri == null ? null : schemaMap.get(resourceUri);
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}
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private Validator getValidator(Schema schema) {
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return schema != null ? schema.newValidator() : null;
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}
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private Object getContentToValidate(Exchange exchange) {
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if (shouldUseHeader()) {
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return exchange.getIn().getHeader(headerName);
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} else {
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return exchange.getIn().getBody();
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}
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}
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private <T> T getContentToValidate(Exchange exchange, Class<T> clazz) {
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if (shouldUseHeader()) {
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return exchange.getIn().getHeader(headerName, clazz);
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} else {
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return exchange.getIn().getBody(clazz);
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}
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}
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private boolean shouldUseHeader() {
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return headerName != null;
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}
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public void loadSchema() throws Exception {
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schemaReaderFromDB.loadSchema();
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}
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// Properties
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// -----------------------------------------------------------------------
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public Schema getSchema() throws IOException, SAXException {
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return schemaReaderFromDB.getSchema();
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}
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public void setSchema(Schema schema) {
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schemaReaderFromDB.setSchema(schema);
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}
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public String getSchemaLanguage() {
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return schemaReaderFromDB.getSchemaLanguage();
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}
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public void setSchemaLanguage(String schemaLanguage) {
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schemaReaderFromDB.setSchemaLanguage(schemaLanguage);
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}
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public Source getSchemaSource() throws IOException {
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return schemaReaderFromDB.getSchemaSource();
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}
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public void setSchemaSource(Source schemaSource) {
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schemaReaderFromDB.setSchemaSource(schemaSource);
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}
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public URL getSchemaUrl() {
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return schemaReaderFromDB.getSchemaUrl();
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}
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public void setSchemaUrl(URL schemaUrl) {
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schemaReaderFromDB.setSchemaUrl(schemaUrl);
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}
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public File getSchemaFile() {
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return schemaReaderFromDB.getSchemaFile();
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}
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public void setSchemaFile(File schemaFile) {
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schemaReaderFromDB.setSchemaFile(schemaFile);
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}
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public byte[] getSchemaAsByteArray() {
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return schemaReaderFromDB.getSchemaAsByteArray();
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}
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public void setSchemaAsByteArray(byte[] schemaAsByteArray) {
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schemaReaderFromDB.setSchemaAsByteArray(schemaAsByteArray);
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}
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public SchemaFactory getSchemaFactory() {
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return schemaReaderFromDB.getSchemaFactory();
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}
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public void setSchemaFactory(SchemaFactory schemaFactory) {
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schemaReaderFromDB.setSchemaFactory(schemaFactory);
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}
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public ValidatorErrorHandler getErrorHandler() {
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return errorHandler;
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}
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public void setErrorHandler(ValidatorErrorHandler errorHandler) {
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this.errorHandler = errorHandler;
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}
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@Deprecated
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public boolean isUseDom() {
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return useDom;
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}
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/**
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* Sets whether DOMSource and DOMResult should be used.
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*
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* @param useDom true to use DOM otherwise
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*/
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@Deprecated
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public void setUseDom(boolean useDom) {
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this.useDom = useDom;
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}
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public boolean isUseSharedSchema() {
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return useSharedSchema;
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}
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public void setUseSharedSchema(boolean useSharedSchema) {
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this.useSharedSchema = useSharedSchema;
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}
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public LSResourceResolver getResourceResolver() {
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return schemaReaderFromDB.getResourceResolver();
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}
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public void setResourceResolver(LSResourceResolver resourceResolver) {
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schemaReaderFromDB.setResourceResolver(resourceResolver);
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}
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public boolean isFailOnNullBody() {
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return failOnNullBody;
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}
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public void setFailOnNullBody(boolean failOnNullBody) {
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this.failOnNullBody = failOnNullBody;
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}
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public boolean isFailOnNullHeader() {
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return failOnNullHeader;
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}
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public void setFailOnNullHeader(boolean failOnNullHeader) {
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this.failOnNullHeader = failOnNullHeader;
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}
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public String getHeaderName() {
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return headerName;
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}
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public void setHeaderName(String headerName) {
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this.headerName = headerName;
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}
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// Implementation methods
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// -----------------------------------------------------------------------
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protected SchemaFactory createSchemaFactory() {
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return schemaReaderFromDB.createSchemaFactory();
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}
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protected Source createSchemaSource() throws IOException {
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return schemaReaderFromDB.createSchemaSource();
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}
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protected Schema createSchema() throws SAXException, IOException {
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return schemaReaderFromDB.createSchema();
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}
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/**
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* Checks whether we need an {@link InputStream} to access the message body or header.
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* <p/>
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* Depending on the content in the message body or header, we may not need to convert
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* to {@link InputStream}.
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*
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* @param exchange the current exchange
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* @return <tt>true</tt> to convert to {@link InputStream} beforehand converting to {@link Source} afterwards.
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*/
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protected boolean isInputStreamNeeded(Exchange exchange) {
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Object content = getContentToValidate(exchange);
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if (content == null) {
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return false;
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}
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|
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if (content instanceof InputStream) {
|
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return true;
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} else if (content instanceof Source) {
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return false;
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} else if (content instanceof String) {
|
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return false;
|
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} else if (content instanceof byte[]) {
|
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return false;
|
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} else //there is a direct and hopefully optimized converter to Source
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if (content instanceof Node) {
|
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return false;
|
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} else return exchange.getContext().getTypeConverterRegistry().lookup(Source.class, content.getClass()) == null;
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// yes an input stream is needed
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}
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|
||||
/**
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||||
* Converts the inbound body or header to a {@link Source}, if it is <b>not</b> already a {@link Source}.
|
||||
* <p/>
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* This implementation will prefer to source in the following order:
|
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* <ul>
|
||||
* <li>DOM - DOM if explicit configured to use DOM</li>
|
||||
* <li>SAX - SAX as 2nd choice</li>
|
||||
* <li>Stream - Stream as 3rd choice</li>
|
||||
* <li>DOM - DOM as 4th choice</li>
|
||||
* </ul>
|
||||
*/
|
||||
protected Source getSource(Exchange exchange, Object content) {
|
||||
if (isUseDom()) {
|
||||
// force DOM
|
||||
return exchange.getContext().getTypeConverter().tryConvertTo(DOMSource.class, exchange, content);
|
||||
}
|
||||
|
||||
// body or header may already be a source
|
||||
if (content instanceof Source) {
|
||||
return (Source) content;
|
||||
}
|
||||
Source source = null;
|
||||
if (content instanceof InputStream) {
|
||||
return new StreamSource((InputStream) content);
|
||||
}
|
||||
if (content != null) {
|
||||
TypeConverter tc = exchange.getContext().getTypeConverterRegistry().lookup(Source.class, content.getClass());
|
||||
if (tc != null) {
|
||||
source = tc.convertTo(Source.class, exchange, content);
|
||||
}
|
||||
}
|
||||
|
||||
if (source == null) {
|
||||
// then try SAX
|
||||
source = exchange.getContext().getTypeConverter().tryConvertTo(SAXSource.class, exchange, content);
|
||||
}
|
||||
if (source == null) {
|
||||
// then try stream
|
||||
source = exchange.getContext().getTypeConverter().tryConvertTo(StreamSource.class, exchange, content);
|
||||
}
|
||||
if (source == null) {
|
||||
// and fallback to DOM
|
||||
source = exchange.getContext().getTypeConverter().tryConvertTo(DOMSource.class, exchange, content);
|
||||
}
|
||||
if (source == null) {
|
||||
if (isFailOnNullBody()) {
|
||||
throw new ExpectedBodyTypeException(exchange, Source.class);
|
||||
} else {
|
||||
try {
|
||||
source = converter.toDOMSource(converter.createDocument());
|
||||
} catch (ParserConfigurationException e) {
|
||||
throw new RuntimeTransformException(e);
|
||||
}
|
||||
}
|
||||
}
|
||||
return source;
|
||||
}
|
||||
|
||||
}
|
||||
@ -0,0 +1,38 @@
|
||||
/*-
|
||||
* ~~~~~~licensing~~~~~~
|
||||
* schema-component
|
||||
* ==========
|
||||
* Copyright (C) 2020 - 2021 EmDev LLC
|
||||
* ==========
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
* ~~~~~~/licensing~~~~~~
|
||||
*/
|
||||
package ru.entaxy.esb.system.registry.schema.component;
|
||||
|
||||
import org.apache.camel.Endpoint;
|
||||
import org.apache.camel.support.DefaultComponent;
|
||||
|
||||
import java.util.Map;
|
||||
|
||||
public class ValidatorWithDBStorageComponent extends DefaultComponent {
|
||||
|
||||
@Override
|
||||
protected Endpoint createEndpoint(String uri, String xsdScheme, Map<String, Object> parameters) throws Exception {
|
||||
ValidatorWithDBStorageEndpoint endpoint = new ValidatorWithDBStorageEndpoint(uri, this);
|
||||
|
||||
endpoint.setUri(uri);
|
||||
setProperties(endpoint, parameters);
|
||||
return endpoint;
|
||||
}
|
||||
|
||||
}
|
||||
@ -0,0 +1,131 @@
|
||||
/*-
|
||||
* ~~~~~~licensing~~~~~~
|
||||
* schema-component
|
||||
* ==========
|
||||
* Copyright (C) 2020 - 2021 EmDev LLC
|
||||
* ==========
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
* ~~~~~~/licensing~~~~~~
|
||||
*/
|
||||
package ru.entaxy.esb.system.registry.schema.component;
|
||||
|
||||
import org.apache.camel.Component;
|
||||
import org.apache.camel.Consumer;
|
||||
import org.apache.camel.Processor;
|
||||
import org.apache.camel.Producer;
|
||||
import org.apache.camel.spi.Metadata;
|
||||
import org.apache.camel.spi.UriEndpoint;
|
||||
import org.apache.camel.spi.UriParam;
|
||||
import org.apache.camel.spi.UriPath;
|
||||
import org.apache.camel.support.DefaultEndpoint;
|
||||
import org.osgi.framework.FrameworkUtil;
|
||||
import org.w3c.dom.ls.LSResourceResolver;
|
||||
import ru.entaxy.esb.system.common.osgi.OSGIUtils;
|
||||
import ru.entaxy.esb.system.registry.schema.api.ResourceService;
|
||||
import ru.entaxy.esb.system.registry.schema.component.util.SchemaReaderFromDB;
|
||||
|
||||
@UriEndpoint(
|
||||
scheme = "validatorWithDBStorage",
|
||||
title = "ValidatorWithDBStorage",
|
||||
syntax = "validatorWithDBStorage:namespace",
|
||||
label = "Custom validator component with loader resources from db",
|
||||
producerOnly = true)
|
||||
public class ValidatorWithDBStorageEndpoint extends DefaultEndpoint {
|
||||
|
||||
@UriPath(description = "URL to a local resource on the classpath, or a reference to lookup a bean in the Registry,"
|
||||
+ " or a full URL to a remote resource or resource on the file system which contains the XSD to validate against.")
|
||||
@Metadata(required = true)
|
||||
private String uri;
|
||||
|
||||
@UriParam(description = "Version")
|
||||
@Metadata(required = true)
|
||||
private String version;
|
||||
/**
|
||||
* We need a one-to-one relation between endpoint and schema reader in order
|
||||
* to be able to clear the cached schema in the schema reader. See method
|
||||
*/
|
||||
private final SchemaReaderFromDB schemaReaderFromDB;
|
||||
private volatile boolean schemaReaderConfigured;
|
||||
|
||||
private ResourceService resourceService;
|
||||
private LSResourceResolver resourceResolver;
|
||||
|
||||
public ValidatorWithDBStorageEndpoint(String uri, Component component) {
|
||||
super(uri, component);
|
||||
this.uri = uri.replace("validatorWithDBStorage://", "").replace("validatorWithDBStorage:", "").replace("validatorWithDBStorage", "");
|
||||
schemaReaderFromDB = this.uri.isEmpty() ? new SchemaReaderFromDB() :
|
||||
new SchemaReaderFromDB(getCamelContext(), this.uri, version);
|
||||
}
|
||||
|
||||
public Producer createProducer() throws Exception {
|
||||
if (!schemaReaderConfigured) {
|
||||
if (resourceResolver != null) {
|
||||
schemaReaderFromDB.setResourceResolver(getResourceResolver());
|
||||
}
|
||||
|
||||
schemaReaderFromDB.setResourceService(getResourceService());
|
||||
// force loading of schema at create time otherwise concurrent
|
||||
// processing could cause thread safe issues for the
|
||||
// javax.xml.validation.SchemaFactory
|
||||
schemaReaderFromDB.loadSchema();
|
||||
|
||||
// configure only once
|
||||
schemaReaderConfigured = true;
|
||||
}
|
||||
|
||||
ValidatingProcessor validator = new ValidatingProcessor(schemaReaderFromDB, uri);
|
||||
return new ValidatorWithDBStorageProducer(this, validator);
|
||||
}
|
||||
|
||||
public Consumer createConsumer(Processor processor) throws Exception {
|
||||
return null;
|
||||
}
|
||||
|
||||
public boolean isSingleton() {
|
||||
return true;
|
||||
}
|
||||
|
||||
public String getUri() {
|
||||
return uri;
|
||||
}
|
||||
|
||||
public void setUri(String uri) {
|
||||
this.uri = uri;
|
||||
}
|
||||
|
||||
public ResourceService getResourceService() {
|
||||
if (resourceService == null) {
|
||||
resourceService = (ResourceService) OSGIUtils.getServiceReference(
|
||||
FrameworkUtil.getBundle(ValidatorWithDBStorageEndpoint.class).getBundleContext(),
|
||||
ResourceService.class.getName());
|
||||
}
|
||||
return resourceService;
|
||||
}
|
||||
|
||||
private LSResourceResolver getResourceResolver() {
|
||||
if (resourceResolver == null) {
|
||||
resourceResolver = (LSResourceResolver) OSGIUtils.getServiceReference(
|
||||
FrameworkUtil.getBundle(ValidatorWithDBStorageEndpoint.class).getBundleContext(),
|
||||
LSResourceResolver.class.getName());
|
||||
}
|
||||
return resourceResolver;
|
||||
}
|
||||
|
||||
public void setVersion(String version) {
|
||||
this.version = version;
|
||||
}
|
||||
|
||||
public String getVersion() {
|
||||
return version;
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,63 @@
|
||||
/*-
|
||||
* ~~~~~~licensing~~~~~~
|
||||
* schema-component
|
||||
* ==========
|
||||
* Copyright (C) 2020 - 2021 EmDev LLC
|
||||
* ==========
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
* ~~~~~~/licensing~~~~~~
|
||||
*/
|
||||
package ru.entaxy.esb.system.registry.schema.component;
|
||||
|
||||
import org.apache.camel.AsyncCallback;
|
||||
import org.apache.camel.Endpoint;
|
||||
import org.apache.camel.Exchange;
|
||||
import org.apache.camel.support.DefaultAsyncProducer;
|
||||
import org.apache.camel.support.service.ServiceHelper;
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
|
||||
|
||||
public class ValidatorWithDBStorageProducer extends DefaultAsyncProducer {
|
||||
|
||||
private static final Logger LOG = LoggerFactory.getLogger(ValidatorWithDBStorageProducer.class);
|
||||
private final ValidatingProcessor validatingProcessor;
|
||||
|
||||
public ValidatorWithDBStorageProducer(Endpoint endpoint, ValidatingProcessor validatingProcessor) {
|
||||
super(endpoint);
|
||||
this.validatingProcessor = validatingProcessor;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean process(Exchange exchange, AsyncCallback callback) {
|
||||
return validatingProcessor.process(exchange, callback);
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void doStart() throws Exception {
|
||||
super.doStart();
|
||||
ServiceHelper.startService(validatingProcessor);
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void doStop() throws Exception {
|
||||
super.doStop();
|
||||
ServiceHelper.stopService(validatingProcessor);
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void doShutdown() throws Exception {
|
||||
super.doStop();
|
||||
ServiceHelper.stopAndShutdownService(validatingProcessor);
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,47 @@
|
||||
/*-
|
||||
* ~~~~~~licensing~~~~~~
|
||||
* schema-component
|
||||
* ==========
|
||||
* Copyright (C) 2020 - 2021 EmDev LLC
|
||||
* ==========
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
* ~~~~~~/licensing~~~~~~
|
||||
*/
|
||||
package ru.entaxy.esb.system.registry.schema.component.exception;
|
||||
|
||||
public class SchemaNotFoundException extends Exception {
|
||||
|
||||
private static final long serialVersionUID = 948229285513408917L;
|
||||
|
||||
public SchemaNotFoundException() {
|
||||
super();
|
||||
}
|
||||
|
||||
public SchemaNotFoundException(String message, Throwable cause, boolean enableSuppression,
|
||||
boolean writableStackTrace) {
|
||||
super(message, cause, enableSuppression, writableStackTrace);
|
||||
}
|
||||
|
||||
public SchemaNotFoundException(String message, Throwable cause) {
|
||||
super(message, cause);
|
||||
}
|
||||
|
||||
public SchemaNotFoundException(String message) {
|
||||
super(message);
|
||||
}
|
||||
|
||||
public SchemaNotFoundException(Throwable cause) {
|
||||
super(cause);
|
||||
}
|
||||
|
||||
}
|
||||
@ -0,0 +1,221 @@
|
||||
/*-
|
||||
* ~~~~~~licensing~~~~~~
|
||||
* schema-component
|
||||
* ==========
|
||||
* Copyright (C) 2020 - 2021 EmDev LLC
|
||||
* ==========
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
* ~~~~~~/licensing~~~~~~
|
||||
*/
|
||||
package ru.entaxy.esb.system.registry.schema.component.util;
|
||||
|
||||
import org.apache.camel.CamelContext;
|
||||
import org.apache.camel.util.ObjectHelper;
|
||||
import org.slf4j.Logger;
|
||||
import org.slf4j.LoggerFactory;
|
||||
import org.w3c.dom.ls.LSResourceResolver;
|
||||
import org.xml.sax.SAXException;
|
||||
import ru.entaxy.esb.system.registry.schema.api.ResourceService;
|
||||
import ru.entaxy.esb.system.registry.schema.api.entity.Resource;
|
||||
|
||||
import javax.xml.XMLConstants;
|
||||
import javax.xml.transform.Source;
|
||||
import javax.xml.transform.stream.StreamSource;
|
||||
import javax.xml.validation.Schema;
|
||||
import javax.xml.validation.SchemaFactory;
|
||||
import java.io.ByteArrayInputStream;
|
||||
import java.io.File;
|
||||
import java.io.IOException;
|
||||
import java.net.URL;
|
||||
import java.util.Optional;
|
||||
|
||||
public class SchemaReaderFromDB {
|
||||
|
||||
/**
|
||||
* Key of the global option to switch either off or on the access to external DTDs in the XML Validator for StreamSources.
|
||||
* Only effective, if not a custom schema factory is used.
|
||||
*/
|
||||
public static final String ACCESS_EXTERNAL_DTD = "CamelXmlValidatorAccessExternalDTD";
|
||||
|
||||
private static final Logger LOG = LoggerFactory.getLogger(SchemaReaderFromDB.class);
|
||||
|
||||
private String schemaLanguage = XMLConstants.W3C_XML_SCHEMA_NS_URI;
|
||||
// must be volatile because is accessed from different threads see ValidatorEndpoint.clearCachedSchema
|
||||
private volatile Schema schema;
|
||||
private Source schemaSource;
|
||||
// must be volatile because is accessed from different threads see ValidatorEndpoint.clearCachedSchema
|
||||
private volatile SchemaFactory schemaFactory;
|
||||
private URL schemaUrl;
|
||||
private File schemaFile;
|
||||
private byte[] schemaAsByteArray;
|
||||
private String schemaResourceUri;
|
||||
private String version;
|
||||
private LSResourceResolver resourceResolver;
|
||||
private ResourceService resourceService;
|
||||
|
||||
private final CamelContext camelContext;
|
||||
|
||||
public SchemaReaderFromDB() {
|
||||
this.camelContext = null;
|
||||
this.schemaResourceUri = null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Specify a camel context and a schema resource URI in order to read the schema via the class resolver specified in the Camel context.
|
||||
*/
|
||||
public SchemaReaderFromDB(CamelContext camelContext, String schemaResourceUri, String version) {
|
||||
ObjectHelper.notNull(camelContext, "camelContext");
|
||||
ObjectHelper.notNull(schemaResourceUri, "schemaResourceUri");
|
||||
this.camelContext = camelContext;
|
||||
this.schemaResourceUri = schemaResourceUri;
|
||||
this.version = version;
|
||||
}
|
||||
|
||||
public void loadSchema() throws Exception {
|
||||
// force loading of schema
|
||||
schema = createSchema();
|
||||
}
|
||||
|
||||
// Properties
|
||||
// -----------------------------------------------------------------------
|
||||
|
||||
public Schema getSchema() throws IOException, SAXException {
|
||||
if (schema == null) {
|
||||
synchronized (this) {
|
||||
if (schema == null) {
|
||||
schema = createSchema();
|
||||
}
|
||||
}
|
||||
}
|
||||
return schema;
|
||||
}
|
||||
|
||||
public void setSchema(Schema schema) {
|
||||
this.schema = schema;
|
||||
}
|
||||
|
||||
public String getSchemaLanguage() {
|
||||
return schemaLanguage;
|
||||
}
|
||||
|
||||
public void setSchemaLanguage(String schemaLanguage) {
|
||||
this.schemaLanguage = schemaLanguage;
|
||||
}
|
||||
|
||||
public Source getSchemaSource() throws IOException {
|
||||
if (schemaSource == null) {
|
||||
schemaSource = createSchemaSource();
|
||||
}
|
||||
return schemaSource;
|
||||
}
|
||||
|
||||
public void setSchemaSource(Source schemaSource) {
|
||||
this.schemaSource = schemaSource;
|
||||
}
|
||||
|
||||
public URL getSchemaUrl() {
|
||||
return schemaUrl;
|
||||
}
|
||||
|
||||
public void setSchemaUrl(URL schemaUrl) {
|
||||
this.schemaUrl = schemaUrl;
|
||||
}
|
||||
|
||||
public File getSchemaFile() {
|
||||
return schemaFile;
|
||||
}
|
||||
|
||||
public void setSchemaFile(File schemaFile) {
|
||||
this.schemaFile = schemaFile;
|
||||
}
|
||||
|
||||
public byte[] getSchemaAsByteArray() {
|
||||
return schemaAsByteArray;
|
||||
}
|
||||
|
||||
public void setSchemaAsByteArray(byte[] schemaAsByteArray) {
|
||||
this.schemaAsByteArray = schemaAsByteArray;
|
||||
}
|
||||
|
||||
public SchemaFactory getSchemaFactory() {
|
||||
if (schemaFactory == null) {
|
||||
synchronized (this) {
|
||||
if (schemaFactory == null) {
|
||||
schemaFactory = createSchemaFactory();
|
||||
}
|
||||
}
|
||||
}
|
||||
return schemaFactory;
|
||||
}
|
||||
|
||||
public void setSchemaFactory(SchemaFactory schemaFactory) {
|
||||
this.schemaFactory = schemaFactory;
|
||||
}
|
||||
|
||||
public void setResourceService(ResourceService resourceService) {
|
||||
this.resourceService = resourceService;
|
||||
}
|
||||
|
||||
public LSResourceResolver getResourceResolver() {
|
||||
return resourceResolver;
|
||||
}
|
||||
|
||||
public void setResourceResolver(LSResourceResolver resourceResolver) {
|
||||
this.resourceResolver = resourceResolver;
|
||||
}
|
||||
|
||||
public void setSchemaResourceUri(String schemaResourceUri) {
|
||||
this.schemaResourceUri = schemaResourceUri;
|
||||
}
|
||||
|
||||
public String getSchemaResourceUri() {
|
||||
return schemaResourceUri;
|
||||
}
|
||||
|
||||
public SchemaFactory createSchemaFactory() {
|
||||
SchemaFactory factory = SchemaFactory.newInstance(schemaLanguage);
|
||||
if (getResourceResolver() != null) {
|
||||
factory.setResourceResolver(getResourceResolver());
|
||||
}
|
||||
if (camelContext == null || !Boolean.parseBoolean(camelContext.getGlobalOptions().get(ACCESS_EXTERNAL_DTD))) {
|
||||
try {
|
||||
LOG.debug("Configuring SchemaFactory to not allow access to external DTD/Schema");
|
||||
factory.setProperty(XMLConstants.ACCESS_EXTERNAL_DTD, "");
|
||||
} catch (SAXException e) {
|
||||
LOG.warn(e.getMessage(), e);
|
||||
}
|
||||
}
|
||||
return factory;
|
||||
}
|
||||
|
||||
public Source createSchemaSource() throws IOException {
|
||||
throw new IllegalArgumentException("You must specify either a schema, schemaFile, schemaSource, schemaUrl, or schemaUri property");
|
||||
}
|
||||
|
||||
public Schema createSchema() throws SAXException, IOException {
|
||||
SchemaFactory factory = getSchemaFactory();
|
||||
|
||||
Optional<Resource> resource = Optional.empty();
|
||||
if (schemaResourceUri != null && schemaResourceUri.contains("namespace:")) {
|
||||
resource = resourceService.getResourceByNamespace(schemaResourceUri.replace("namespace:", ""));
|
||||
}
|
||||
|
||||
if (schemaResourceUri != null && schemaResourceUri.contains("uuid:")) {
|
||||
resource = resourceService.getResourceByNamespace(schemaResourceUri.replace("uuid:", ""));
|
||||
}
|
||||
|
||||
if (resource.isPresent())
|
||||
return factory.newSchema(new StreamSource(new ByteArrayInputStream(resource.get().getResourceValue())));
|
||||
return null;
|
||||
}
|
||||
}
|
||||
@ -0,0 +1 @@
|
||||
class=ValidatorWithDBStorageComponent
|
||||
@ -0,0 +1,30 @@
|
||||
###
|
||||
# ~~~~~~licensing~~~~~~
|
||||
# schema-component
|
||||
# ==========
|
||||
# Copyright (C) 2020 - 2021 EmDev LLC
|
||||
# ==========
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
# ~~~~~~/licensing~~~~~~
|
||||
###
|
||||
appender.file.type=File
|
||||
appender.file.name=file
|
||||
appender.file.fileName=target/camel-test.log
|
||||
appender.file.layout.type=PatternLayout
|
||||
appender.file.layout.pattern=%d %-5p %c{1} - %m %n
|
||||
appender.out.type=Console
|
||||
appender.out.name=out
|
||||
appender.out.layout.type=PatternLayout
|
||||
appender.out.layout.pattern=[%30.30t] %-30.30c{1} %-5p %m%n
|
||||
rootLogger.level=INFO
|
||||
rootLogger.appenderRef.out.ref=out
|
||||
Reference in New Issue
Block a user