/*
*
* Copyright (c) 2015, alipay.com
*
* 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.
*/
package com.alipay.euler.andfix.patch;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.jar.Attributes;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.jar.Manifest;
import android.util.Log;
/**
* patch model
*
* @author sanping.li@alipay.com
*
*/
public class Patch implements Comparable<Patch> {
private static final String ENTRY_NAME = "META-INF/PATCH.MF";
private static final String CLASSES = "-Classes";
private static final String PATCH_CLASSES = "Patch-Classes";
private static final String CREATED_TIME = "Created-Time";
private static final String PATCH_NAME = "Patch-Name";
/**
* patch file
*/
private final File mFile;
/**
* name
*/
private String mName;
/**
* create time
*/
private Date mTime;
/**
* classes of patch
*/
private Map<String, List<String>> mClassesMap;
public Patch(File file) throws IOException {
mFile = file;
init();
}
@SuppressWarnings("deprecation")
private void init() throws IOException {
Log.d("euler", "Patch, init");
JarFile jarFile = null;
InputStream inputStream = null;
try {
jarFile = new JarFile(mFile);
JarEntry entry = jarFile.getJarEntry(ENTRY_NAME);
inputStream = jarFile.getInputStream(entry);
Manifest manifest = new Manifest(inputStream);
Attributes main = manifest.getMainAttributes();
mName = main.getValue(PATCH_NAME);
mTime = new Date(main.getValue(CREATED_TIME));
mClassesMap = new HashMap<String, List<String>>();
Attributes.Name attrName;
String name;
List<String> strings;
for (Iterator<?> it = main.keySet().iterator(); it.hasNext();) {
attrName = (Attributes.Name) it.next();
name = attrName.toString();
if (name.endsWith(CLASSES)) {
strings = Arrays.asList(main.getValue(attrName).split(","));
if (name.equalsIgnoreCase(PATCH_CLASSES)) {
mClassesMap.put(mName, strings);
} else {
mClassesMap.put(
name.trim().substring(0, name.length() - 8),// remove
// "-Classes"
strings);
}
}
}
} finally {
if (jarFile != null) {
jarFile.close();
}
if (inputStream != null) {
inputStream.close();
}
}
}
public String getName() {
return mName;
}
public File getFile() {
return mFile;
}
public Set<String> getPatchNames() {
return mClassesMap.keySet();
}
public List<String> getClasses(String patchName) {
return mClassesMap.get(patchName);
}
public Date getTime() {
return mTime;
}
@Override
public int compareTo(Patch another) {
return mTime.compareTo(another.getTime());
}
}