| /* |
| * 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; |
| |
| /** |
| * Function formatting a number or character to a hex value. |
| */ |
| public class HexFieldPart implements Part { |
| |
| private String fieldName; |
| |
| /** |
| * Creates a new hex field part |
| * @param fieldName the field name |
| */ |
| public HexFieldPart(String fieldName) { |
| this.fieldName = fieldName; |
| } |
| |
| /** {@inheritDoc} */ |
| public boolean isGenerated(Map params) { |
| Object obj = params.get(fieldName); |
| return obj != null; |
| } |
| |
| /** {@inheritDoc} */ |
| public void write(StringBuffer sb, Map params) { |
| if (!params.containsKey(fieldName)) { |
| throw new IllegalArgumentException( |
| "Message pattern contains unsupported field name: " + fieldName); |
| } |
| Object obj = params.get(fieldName); |
| if (obj instanceof Character) { |
| sb.append(Integer.toHexString(((Character)obj).charValue())); |
| } else if (obj instanceof Number) { |
| sb.append(Integer.toHexString(((Number)obj).intValue())); |
| } else { |
| throw new IllegalArgumentException("Incompatible value for hex field part: " |
| + obj.getClass().getName()); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| public String toString() { |
| return "{" + this.fieldName + ",hex}"; |
| } |
| |
| /** Factory for {@link HexFieldPart}. */ |
| public static class Factory implements PartFactory { |
| |
| /** {@inheritDoc} */ |
| public Part newPart(String fieldName, String values) { |
| return new HexFieldPart(fieldName); |
| } |
| |
| /** {@inheritDoc} */ |
| public String getFormat() { |
| return "hex"; |
| } |
| |
| } |
| } |