| /* |
| * 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. |
| */ |
| |
| /* $Id$ */ |
| |
| 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: |
| * <code>{field,equals,new,This is new!,This is old!}</code> |
| */ |
| 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"; |
| } |
| |
| } |
| } |