org.apache.fop.util.text.EqualsFieldPart Maven / Gradle / Ivy
/*
* 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.
*/
/* $Id: EqualsFieldPart.java 1297404 2012-03-06 10:17:54Z vhennebert $ */
package org.apache.fop.util.text;
import java.util.Map;
import org.apache.fop.util.text.AdvancedMessageFormat.Part;
import org.apache.fop.util.text.AdvancedMessageFormat.PartFactory;
/**
* Defines an "equals" field part that can compare a field's string value against another string.
* It returns either of two possible values attached as additional part parameters. Example:
* {field,equals,new,This is new!,This is old!}
*/
public class EqualsFieldPart extends IfFieldPart {
private String equalsValue;
/**
* Creates a new "equals" field part.
* @param fieldName the field name
* @param values the unparsed parameter values
*/
public EqualsFieldPart(String fieldName, String values) {
super(fieldName, values);
}
/** {@inheritDoc} */
protected void parseValues(String values) {
String[] parts = AdvancedMessageFormat.COMMA_SEPARATOR_REGEX.split(values, 3);
this.equalsValue = parts[0];
if (parts.length == 1) {
throw new IllegalArgumentException(
"'equals' format must have at least 2 parameters");
}
if (parts.length == 3) {
ifValue = AdvancedMessageFormat.unescapeComma(parts[1]);
elseValue = AdvancedMessageFormat.unescapeComma(parts[2]);
} else {
ifValue = AdvancedMessageFormat.unescapeComma(parts[1]);
}
}
/** {@inheritDoc} */
protected boolean isTrue(Map params) {
Object obj = params.get(fieldName);
if (obj != null) {
return String.valueOf(obj).equals(this.equalsValue);
} else {
return false;
}
}
/** {@inheritDoc} */
public String toString() {
return "{" + this.fieldName + ", equals " + this.equalsValue + "}";
}
/**
* Part factory for "equals".
*/
public static class Factory implements PartFactory {
/** {@inheritDoc} */
public Part newPart(String fieldName, String values) {
return new EqualsFieldPart(fieldName, values);
}
/** {@inheritDoc} */
public String getFormat() {
return "equals";
}
}
}