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/*
* Copyright (C) 2007 The Android Open Source Project
*
* 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 tests.api.org.xml.sax.support;
import java.util.ArrayList;
import java.util.List;
/**
* A simple helper class that logs method calls by storing method names and
* parameter lists. Used as a foundation for various simple SAX handlers.
*/
public class MethodLogger {
/**
* The names of the invoked methods, in order.
*/
private List<String> methods = new ArrayList<String>();
/**
* The parameter lists of the invoked methods, in order.
*/
private List<Object[]> argLists = new ArrayList<Object[]>();
/**
* Adds a method call with a variable list of arguments.
*/
public void add(String method, Object ... args) {
Object[] argsCopy = new Object[args.length];
System.arraycopy(args, 0, argsCopy, 0, args.length);
methods.add(method);
argLists.add(argsCopy);
}
/**
* Returns the number of method invoked so far.
*/
public int size() {
return methods.size();
}
/**
* Returns the method name stored at the given index.
*/
public String getMethod(int index) {
return methods.get(index);
}
/**
* Returns the name of the last method that was invoked. Returns null if no
* method calls have been logged so far.
*/
public String getMethod() {
return (size() == 0 ? null : getMethod(size() - 1));
}
/**
* Returns the argument array stored at the given index. May be empty, but
* not null.
*/
public Object[] getArgs(int index) {
return argLists.get(index);
}
/**
* Returns the argument array of the last method that was invoked. Returns
* null if no method has been invoked so far.
*/
public Object[] getArgs() {
return (size() == 0 ? null : getArgs(size() - 1));
}
/**
* Clears the log.
*/
public void clear() {
methods.clear();
argLists.clear();
}
}
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