Source Code Cross Referenced for ContinueRecord.java in  » Collaboration » poi-3.0.2-beta2 » org » apache » poi » hssf » record » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Collaboration » poi 3.0.2 beta2 » org.apache.poi.hssf.record 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /* ====================================================================
002:         Licensed to the Apache Software Foundation (ASF) under one or more
003:         contributor license agreements.  See the NOTICE file distributed with
004:         this work for additional information regarding copyright ownership.
005:         The ASF licenses this file to You under the Apache License, Version 2.0
006:         (the "License"); you may not use this file except in compliance with
007:         the License.  You may obtain a copy of the License at
008:
009:         http://www.apache.org/licenses/LICENSE-2.0
010:
011:         Unless required by applicable law or agreed to in writing, software
012:         distributed under the License is distributed on an "AS IS" BASIS,
013:         WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014:         See the License for the specific language governing permissions and
015:         limitations under the License.
016:         ==================================================================== */
017:
018:        package org.apache.poi.hssf.record;
019:
020:        import org.apache.poi.util.LittleEndian;
021:
022:        /**
023:         * Title:        Continue Record - Helper class used primarily for SST Records <P>
024:         * Description:  handles overflow for prior record in the input
025:         *               stream; content is tailored to that prior record<P>
026:         * @author Marc Johnson (mjohnson at apache dot org)
027:         * @author Andrew C. Oliver (acoliver at apache dot org)
028:         * @author Csaba Nagy (ncsaba at yahoo dot com)
029:         * @version 2.0-pre
030:         */
031:
032:        public class ContinueRecord extends Record {
033:            public final static short sid = 0x003C;
034:            private byte[] field_1_data;
035:
036:            /**
037:             * default constructor
038:             */
039:
040:            public ContinueRecord() {
041:            }
042:
043:            /**
044:             * Main constructor -- kinda dummy because we don't validate or fill fields
045:             *
046:             * @param in the RecordInputstream to read the record from
047:             */
048:
049:            public ContinueRecord(RecordInputStream in) {
050:                super (in);
051:            }
052:
053:            /**
054:             * USE ONLY within "processContinue"
055:             */
056:
057:            public byte[] serialize() {
058:                byte[] retval = new byte[field_1_data.length + 4];
059:                serialize(0, retval);
060:                return retval;
061:            }
062:
063:            public int serialize(int offset, byte[] data) {
064:
065:                LittleEndian.putShort(data, offset, sid);
066:                LittleEndian.putShort(data, offset + 2,
067:                        (short) field_1_data.length);
068:                System.arraycopy(field_1_data, 0, data, offset + 4,
069:                        field_1_data.length);
070:                return field_1_data.length + 4;
071:                // throw new RecordFormatException(
072:                //    "You're not supposed to serialize Continue records like this directly");
073:            }
074:
075:            /*
076:             * @param data raw data
077:             */
078:
079:            public void setData(byte[] data) {
080:                field_1_data = data;
081:            }
082:
083:            /**
084:             * get the data for continuation
085:             * @return byte array containing all of the continued data
086:             */
087:
088:            public byte[] getData() {
089:                return field_1_data;
090:            }
091:
092:            /**
093:             * Make sure we have a good id
094:             *
095:             * @param id the alleged id
096:             */
097:
098:            protected void validateSid(short id) {
099:                if (id != ContinueRecord.sid) {
100:                    throw new RecordFormatException("Not a Continue Record");
101:                }
102:            }
103:
104:            /**
105:             * Debugging toString
106:             *
107:             * @return string representation
108:             */
109:
110:            public String toString() {
111:                StringBuffer buffer = new StringBuffer();
112:
113:                buffer.append("[CONTINUE RECORD]\n");
114:                buffer.append("    .id        = ").append(
115:                        Integer.toHexString(sid)).append("\n");
116:                buffer.append("[/CONTINUE RECORD]\n");
117:                return buffer.toString();
118:            }
119:
120:            public short getSid() {
121:                return sid;
122:            }
123:
124:            /**
125:             * Fill the fields. Only thing is, this record has no fields --
126:             *
127:             * @param in the RecordInputstream to read the record from
128:             */
129:
130:            protected void fillFields(RecordInputStream in) {
131:                field_1_data = in.readRemainder();
132:            }
133:
134:            /**
135:             * Clone this record.
136:             */
137:            public Object clone() {
138:                ContinueRecord clone = new ContinueRecord();
139:                clone.setData(field_1_data);
140:                return clone;
141:            }
142:
143:        }
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