org.apache.catalina.webresources.AbstractSingleArchiveResourceSet Maven / Gradle / Ivy
/*
* 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.webresources;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.zip.ZipFile;
import org.apache.catalina.LifecycleException;
import org.apache.catalina.WebResourceRoot;
import org.apache.tomcat.util.buf.UriUtil;
/**
* Base class for a {@link org.apache.catalina.WebResourceSet} based on a
* single, rather than nested, archive.
*/
public abstract class AbstractSingleArchiveResourceSet extends AbstractArchiveResourceSet {
private volatile Boolean multiRelease;
/**
* A no argument constructor is required for this to work with the digester.
*/
public AbstractSingleArchiveResourceSet() {
}
public AbstractSingleArchiveResourceSet(WebResourceRoot root, String webAppMount, String base,
String internalPath) throws IllegalArgumentException {
setRoot(root);
setWebAppMount(webAppMount);
setBase(base);
setInternalPath(internalPath);
if (getRoot().getState().isAvailable()) {
try {
start();
} catch (LifecycleException e) {
throw new IllegalStateException(e);
}
}
}
@Override
protected Map getArchiveEntries(boolean single) {
synchronized (archiveLock) {
if (archiveEntries == null && !single) {
JarFile jarFile = null;
archiveEntries = new HashMap<>();
try {
jarFile = openJarFile();
Enumeration entries = jarFile.entries();
while (entries.hasMoreElements()) {
JarEntry entry = entries.nextElement();
archiveEntries.put(entry.getName(), entry);
}
} catch (IOException ioe) {
// Should never happen
archiveEntries = null;
throw new IllegalStateException(ioe);
} finally {
if (jarFile != null) {
closeJarFile();
}
}
}
return archiveEntries;
}
}
@Override
protected JarEntry getArchiveEntry(String pathInArchive) {
JarFile jarFile = null;
try {
jarFile = openJarFile();
return jarFile.getJarEntry(pathInArchive);
} catch (IOException ioe) {
// Should never happen
throw new IllegalStateException(ioe);
} finally {
if (jarFile != null) {
closeJarFile();
}
}
}
@Override
protected boolean isMultiRelease() {
if (multiRelease == null) {
synchronized (archiveLock) {
if (multiRelease == null) {
JarFile jarFile = null;
try {
jarFile = openJarFile();
multiRelease = Boolean.valueOf(jarFile.isMultiRelease());
} catch (IOException ioe) {
// Should never happen
throw new IllegalStateException(ioe);
} finally {
if (jarFile != null) {
closeJarFile();
}
}
}
}
}
return multiRelease.booleanValue();
}
//-------------------------------------------------------- Lifecycle methods
@Override
protected void initInternal() throws LifecycleException {
try (JarFile jarFile = new JarFile(new File(getBase()), true, ZipFile.OPEN_READ, Runtime.version())) {
setManifest(jarFile.getManifest());
} catch (IOException ioe) {
throw new IllegalArgumentException(ioe);
}
try {
setBaseUrl(UriUtil.buildJarSafeUrl(new File(getBase())));
} catch (MalformedURLException e) {
throw new IllegalArgumentException(e);
}
}
}