/*
* Copyright 2012 Sebastian Annies, Hamburg
*
* 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.coremedia.iso;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.net.URL;
import java.util.Enumeration;
import java.util.Properties;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import android.content.Context;
import com.coremedia.iso.boxes.Box;
import com.googlecode.mp4parser.AbstractBox;
import com.todoroo.aacenc.AACToM4A;
import com.todoroo.aacenc.R;
/**
* A Property file based BoxFactory
*/
public class PropertyBoxParserImpl extends AbstractBoxParser {
Properties mapping;
public PropertyBoxParserImpl(String... customProperties) {
Context context = AACToM4A.getContext();
InputStream raw = null, is = null;
mapping = new Properties();
try {
raw = context.getResources().openRawResource(R.raw.isoparser);
is = new BufferedInputStream(raw);
mapping.load(is);
Enumeration<URL> enumeration = Thread.currentThread().getContextClassLoader().getResources("isoparser-custom.properties");
while (enumeration.hasMoreElements()) {
URL url = enumeration.nextElement();
InputStream customIS = new BufferedInputStream(url.openStream());
try {
mapping.load(customIS);
} finally {
customIS.close();
}
}
for (String customProperty : customProperties) {
mapping.load(new BufferedInputStream(getClass().getResourceAsStream(customProperty)));
}
} catch (IOException e) {
throw new RuntimeException(e);
} finally {
try {
if(raw != null)
raw.close();
if(is != null)
is.close();
} catch (IOException e) {
e.printStackTrace();
// ignore - I can't help
}
}
}
public PropertyBoxParserImpl(Properties mapping) {
this.mapping = mapping;
}
Pattern p = Pattern.compile("(.*)\\((.*?)\\)");
@SuppressWarnings("unchecked")
public Class<? extends Box> getClassForFourCc(String type, byte[] userType, String parent) {
FourCcToBox fourCcToBox = new FourCcToBox(type, userType, parent).invoke();
try {
return (Class<? extends Box>) Class.forName(fourCcToBox.clazzName);
} catch (ClassNotFoundException e) {
throw new RuntimeException(e);
}
}
@Override
public Box createBox(String type, byte[] userType, String parent) {
FourCcToBox fourCcToBox = new FourCcToBox(type, userType, parent).invoke();
String[] param = fourCcToBox.getParam();
String clazzName = fourCcToBox.getClazzName();
try {
if (param[0].trim().length() == 0) {
param = new String[]{};
}
Class clazz = Class.forName(clazzName);
Class[] constructorArgsClazz = new Class[param.length];
Object[] constructorArgs = new Object[param.length];
for (int i = 0; i < param.length; i++) {
if ("userType".equals(param[i])) {
constructorArgs[i] = userType;
constructorArgsClazz[i] = byte[].class;
} else if ("type".equals(param[i])) {
constructorArgs[i] = type;
constructorArgsClazz[i] = String.class;
} else if ("parent".equals(param[i])) {
constructorArgs[i] = parent;
constructorArgsClazz[i] = String.class;
} else {
throw new InternalError("No such param: " + param[i]);
}
}
Constructor<AbstractBox> constructorObject;
try {
if (param.length > 0) {
constructorObject = clazz.getConstructor(constructorArgsClazz);
} else {
constructorObject = clazz.getConstructor();
}
return constructorObject.newInstance(constructorArgs);
} catch (NoSuchMethodException e) {
throw new RuntimeException(e);
} catch (InvocationTargetException e) {
throw new RuntimeException(e);
} catch (InstantiationException e) {
throw new RuntimeException(e);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
} catch (ClassNotFoundException e) {
throw new RuntimeException(e);
}
}
private class FourCcToBox {
private String type;
private byte[] userType;
private String parent;
private String clazzName;
private String[] param;
public FourCcToBox(String type, byte[] userType, String parent) {
this.type = type;
this.parent = parent;
this.userType = userType;
}
public String getClazzName() {
return clazzName;
}
public String[] getParam() {
return param;
}
public FourCcToBox invoke() {
String constructor;
if (userType != null) {
if (!"uuid".equals((type))) {
throw new RuntimeException("we have a userType but no uuid box type. Something's wrong");
}
constructor = mapping.getProperty((parent) + "-uuid[" + Hex.encodeHex(userType).toUpperCase() + "]");
if (constructor == null) {
constructor = mapping.getProperty("uuid[" + Hex.encodeHex(userType).toUpperCase() + "]");
}
if (constructor == null) {
constructor = mapping.getProperty("uuid");
}
} else {
constructor = mapping.getProperty((parent) + "-" + (type));
if (constructor == null) {
constructor = mapping.getProperty((type));
}
}
if (constructor == null) {
constructor = mapping.getProperty("default");
}
if (constructor == null) {
throw new RuntimeException("No box object found for " + type);
}
Matcher m = p.matcher(constructor);
boolean matches = m.matches();
if (!matches) {
throw new RuntimeException("Cannot work with that constructor: " + constructor);
}
clazzName = m.group(1);
param = m.group(2).split(",");
return this;
}
}
}