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/*
* 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.tools.ant.taskdefs.condition;
import org.apache.tools.ant.BuildException;
/**
* Simple comparison condition.
*
* @since Ant 1.4
*/
public class Equals implements Condition {
private static final int REQUIRED = 1 | 2;
private Object arg1, arg2;
private boolean trim = false;
private boolean caseSensitive = true;
private int args;
private boolean forcestring = false;
/**
* Set the first argument
* @param arg1 the first argument.
* @since Ant 1.8
*/
public void setArg1(Object arg1) {
if (arg1 instanceof String) {
setArg1((String) arg1);
} else {
setArg1Internal(arg1);
}
}
/**
* Set the first string
*
* @param a1 the first string
*/
public void setArg1(String a1) {
setArg1Internal(a1);
}
private void setArg1Internal(Object arg1) {
this.arg1 = arg1;
args |= 1;
}
/**
* Set the second argument
* @param arg2 the second argument.
* @since Ant 1.8
*/
public void setArg2(Object arg2) {
if (arg2 instanceof String) {
setArg2((String) arg2);
} else {
setArg2Internal(arg2);
}
}
/**
* Set the second string
*
* @param a2 the second string
*/
public void setArg2(String a2) {
setArg2Internal(a2);
}
private void setArg2Internal(Object arg2) {
this.arg2 = arg2;
args |= 2;
}
/**
* Should we want to trim the arguments before comparing them?
* @param b if true trim the arguments
* @since Ant 1.5
*/
public void setTrim(boolean b) {
trim = b;
}
/**
* Should the comparison be case sensitive?
* @param b if true use a case sensitive comparison (this is the
* default)
* @since Ant 1.5
*/
public void setCasesensitive(boolean b) {
caseSensitive = b;
}
/**
* Set whether to force string comparisons for non-equal, non-string objects.
* This allows object properties (legal in Ant 1.8.x+) to be compared as strings.
* @param forcestring value to set
* @since Ant 1.8.1
*/
public void setForcestring(boolean forcestring) {
this.forcestring = forcestring;
}
/**
* @return true if the two strings are equal
* @exception BuildException if the attributes are not set correctly
*/
public boolean eval() throws BuildException {
if ((args & REQUIRED) != REQUIRED) {
throw new BuildException("both arg1 and arg2 are required in equals");
}
if (arg1 == arg2 || arg1 != null && arg1.equals(arg2)) {
return true;
}
if (forcestring) {
arg1 = arg1 == null || arg1 instanceof String ? arg1 : arg1.toString();
arg2 = arg2 == null || arg2 instanceof String ? arg2 : arg2.toString();
}
if (arg1 instanceof String && trim) {
arg1 = ((String) arg1).trim();
}
if (arg2 instanceof String && trim) {
arg2 = ((String) arg2).trim();
}
if (arg1 instanceof String && arg2 instanceof String) {
String s1 = (String) arg1;
String s2 = (String) arg2;
return caseSensitive ? s1.equals(s2) : s1.equalsIgnoreCase(s2);
}
return false;
}
}
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