/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
package org.apache.catalina.ant;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import org.apache.tomcat.util.descriptor.DigesterFactory;
import org.apache.tomcat.util.digester.Digester;
import org.apache.tools.ant.BuildException;
import org.xml.sax.InputSource;
/**
* Task for validating a web application deployment descriptor, using XML schema validation.
*
* @since 5.0
*/
public class ValidatorTask extends BaseRedirectorHelperTask {
// ----------------------------------------------------- Instance Variables
// ------------------------------------------------------------- Properties
/**
* The path to the webapp directory.
*/
protected String path = null;
public String getPath() {
return this.path;
}
public void setPath(String path) {
this.path = path;
}
// --------------------------------------------------------- Public Methods
/**
* Execute the specified command. This logic only performs the common attribute validation required by all
* subclasses; it does not perform any functional logic directly.
*
* @exception BuildException if a validation error occurs
*/
@Override
public void execute() throws BuildException {
if (path == null) {
throw new BuildException("Must specify 'path'");
}
File file = new File(path, "WEB-INF/web.xml");
if (!file.canRead()) {
throw new BuildException("Cannot find web.xml");
}
// Commons-logging likes having the context classloader set
Thread currentThread = Thread.currentThread();
ClassLoader oldCL = currentThread.getContextClassLoader();
currentThread.setContextClassLoader(ValidatorTask.class.getClassLoader());
// Called through trusted manager interface.
Digester digester = DigesterFactory.newDigester(true, true, null, false);
try (InputStream stream = new BufferedInputStream(new FileInputStream(file.getCanonicalFile()))) {
InputSource is = new InputSource(file.toURI().toURL().toExternalForm());
is.setByteStream(stream);
digester.parse(is);
handleOutput("web.xml validated");
} catch (Exception e) {
if (isFailOnError()) {
throw new BuildException("Validation failure", e);
} else {
handleErrorOutput("Validation failure: " + e);
}
} finally {
currentThread.setContextClassLoader(oldCL);
closeRedirector();
}
}
}