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/*
* Copyright 2006 Google Inc.
*
* 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.google.gwt.dev.util.msg;
import com.google.gwt.core.ext.TreeLogger;
import com.google.gwt.core.ext.TreeLogger.Type;
/**
* 2-arg message.
*/
public abstract class Message2 extends Message {
public Message2(Type type, String fmt) {
super(type, fmt, 2);
}
protected TreeLogger branch2(TreeLogger logger, Object arg1, Object arg2,
Formatter fmt1, Formatter fmt2, Throwable caught) {
return logger.branch(type, compose2(arg1, arg2, fmt1, fmt2), caught);
}
protected String compose2(Object arg1, Object arg2, Formatter fmt1,
Formatter fmt2) {
// Format the objects.
//
String stringArg1 = (arg1 != null ? fmt1.format(arg1) : "null");
String stringArg2 = (arg2 != null ? fmt2.format(arg2) : "null");
// Decide how to order the inserts.
// Tests are biased toward $1..$2 order.
//
String insert1 = (argIndices[0] == 0) ? stringArg1 : stringArg2;
String insert2 = (argIndices[1] == 1) ? stringArg2 : stringArg1;
// Cache the length of the inserts.
//
int lenInsert1 = insert1.length();
int lenInsert2 = insert2.length();
// Cache the length of each part.
//
int lenPart0 = fmtParts[0].length;
int lenPart1 = fmtParts[1].length;
int lenPart2 = fmtParts[2].length;
// Prep for copying.
//
int dest = 0;
char[] chars = new char[minChars + lenInsert1 + lenInsert2];
// literal + insert, part 0
System.arraycopy(fmtParts[0], 0, chars, dest, lenPart0);
dest += lenPart0;
insert1.getChars(0, lenInsert1, chars, dest);
dest += lenInsert1;
// literal + insert, part 1
System.arraycopy(fmtParts[1], 0, chars, dest, lenPart1);
dest += lenPart1;
insert2.getChars(0, lenInsert2, chars, dest);
dest += lenInsert2;
// final literal
System.arraycopy(fmtParts[2], 0, chars, dest, lenPart2);
return new String(chars);
}
protected void log2(TreeLogger logger, Object arg1, Object arg2,
Formatter fmt1, Formatter fmt2, Throwable caught) {
if (logger.isLoggable(type)) {
logger.log(type, compose2(arg1, arg2, fmt1, fmt2), caught);
}
}
}
