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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.
- */
-
- /* $Id$ */
-
- package org.apache.fop.util.text;
-
- import java.text.ChoiceFormat;
- import java.util.Map;
- import java.util.regex.Matcher;
- import java.util.regex.Pattern;
-
- import org.apache.fop.utils.text.AdvancedMessageFormat;
- import org.apache.fop.utils.text.AdvancedMessageFormat.Part;
- import org.apache.fop.utils.text.AdvancedMessageFormat.PartFactory;
-
- /**
- * Defines a "choice" field part that works like {@link ChoiceFormat}.
- */
- public class ChoiceFieldPart implements Part {
-
- private static final Pattern VARIABLE_REGEX = Pattern.compile("\\{([^\\}]+)\\}");
-
- private String fieldName;
- private ChoiceFormat choiceFormat;
-
- /**
- * Creates a new choice part.
- * @param fieldName the field name to work on
- * @param choicesPattern the choices pattern (as used by {@link ChoiceFormat})
- */
- public ChoiceFieldPart(String fieldName, String choicesPattern) {
- this.fieldName = fieldName;
- this.choiceFormat = new ChoiceFormat(choicesPattern);
- }
-
- /** {@inheritDoc} */
- public boolean isGenerated(Map params) {
- Object obj = params.get(fieldName);
- return obj != null;
- }
-
- /** {@inheritDoc} */
- public void write(StringBuffer sb, Map params) {
- Object obj = params.get(fieldName);
- Number num = (Number)obj;
- String result = this.choiceFormat.format(num.doubleValue());
- Matcher m = VARIABLE_REGEX.matcher(result);
- if (m.find()) {
- //Resolve inner variables
- AdvancedMessageFormat f = new AdvancedMessageFormat(result);
- f.format(params, sb);
- } else {
- sb.append(result);
- }
- }
-
- /** {@inheritDoc} */
- public String toString() {
- return "{" + this.fieldName + ",choice, ....}";
- }
-
- /** Factory for ChoiceFieldPart. */
- public static class Factory implements PartFactory {
-
- /** {@inheritDoc} */
- public Part newPart(String fieldName, String values) {
- return new ChoiceFieldPart(fieldName, values);
- }
-
- /** {@inheritDoc} */
- public String getFormat() {
- return "choice";
- }
-
- }
-
- }
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