| /* ==================================================================== |
| 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.poi.hmef.attribute; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.logging.log4j.LogManager; |
| import org.apache.logging.log4j.Logger; |
| import org.apache.poi.hmef.Attachment; |
| import org.apache.poi.hmef.HMEFMessage; |
| import org.apache.poi.util.StringUtil; |
| |
| /** |
| * A String attribute which applies to a {@link HMEFMessage} |
| * or one of its {@link Attachment}s. |
| */ |
| public final class TNEFStringAttribute extends TNEFAttribute { |
| private static final Logger LOG = LogManager.getLogger(TNEFStringAttribute.class); |
| private final String data; |
| |
| /** |
| * Constructs a single new string attribute from the id, type, |
| * and the contents of the stream |
| */ |
| protected TNEFStringAttribute(int id, int type, InputStream inp) throws IOException { |
| super(id, type, inp); |
| |
| String tmpData = null; |
| byte[] data = getData(); |
| if(getType() == TNEFProperty.TYPE_TEXT) { |
| tmpData = StringUtil.getFromUnicodeLE(data); |
| } else { |
| tmpData = StringUtil.getFromCompressedUnicode( |
| data, 0, data.length |
| ); |
| } |
| |
| // Strip off the null terminator if present |
| if(tmpData.endsWith("\0")) { |
| tmpData = tmpData.substring(0, tmpData.length()-1); |
| } |
| this.data = tmpData; |
| } |
| |
| public String getString() { |
| return this.data; |
| } |
| |
| public String toString() { |
| return "Attribute " + getProperty() + ", type=" + getType() + |
| ", data=" + getString(); |
| } |
| |
| /** |
| * Returns the string of a Attribute, converting as appropriate |
| */ |
| public static String getAsString(TNEFAttribute attr) { |
| if(attr == null) { |
| return null; |
| } |
| if(attr instanceof TNEFStringAttribute) { |
| return ((TNEFStringAttribute)attr).getString(); |
| } |
| |
| LOG.atWarn().log("Warning, non string property found: {}", attr); |
| return null; |
| } |
| } |