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1
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17
18 package org.apache.poi.ddf;
19
20 import org.apache.poi.util.HexDump;
21 import org.apache.poi.util.LittleEndian;
22
23 import java.util.ArrayList  ;
24 import java.util.Iterator ;
25 import java.util.List ;
26 import java.io.PrintWriter ;
27
28
36 public class EscherContainerRecord extends EscherRecord
37 {
38 public static final short DGG_CONTAINER = (short)0xF000;
39 public static final short BSTORE_CONTAINER = (short)0xF001;
40 public static final short DG_CONTAINER = (short)0xF002;
41 public static final short SPGR_CONTAINER = (short)0xF003;
42 public static final short SP_CONTAINER = (short)0xF004;
43 public static final short SOLVER_CONTAINER = (short)0xF005;
44
45 private List childRecords = new ArrayList ();
46
47 public int fillFields( byte[] data, int offset, EscherRecordFactory recordFactory )
48 {
49 int bytesRemaining = readHeader( data, offset );
50 int bytesWritten = 8;
51 offset += 8;
52 while ( bytesRemaining > 0 && offset < data.length )
53 {
54 EscherRecord child = recordFactory.createRecord(data, offset);
55 int childBytesWritten = child.fillFields( data, offset, recordFactory );
56 bytesWritten += childBytesWritten;
57 offset += childBytesWritten;
58 bytesRemaining -= childBytesWritten;
59 getChildRecords().add( child );
60 if (offset >= data.length && bytesRemaining > 0)
61 {
62 System.out.println("WARNING: " + bytesRemaining + " bytes remaining but no space left");
63 }
64 }
65 return bytesWritten;
66 }
67
68 public int serialize( int offset, byte[] data, EscherSerializationListener listener )
69 {
70 listener.beforeRecordSerialize( offset, getRecordId(), this );
71
72 LittleEndian.putShort(data, offset, getOptions());
73 LittleEndian.putShort(data, offset+2, getRecordId());
74 int remainingBytes = 0;
75 for ( Iterator iterator = getChildRecords().iterator(); iterator.hasNext(); )
76 {
77 EscherRecord r = (EscherRecord) iterator.next();
78 remainingBytes += r.getRecordSize();
79 }
80 LittleEndian.putInt(data, offset+4, remainingBytes);
81 int pos = offset+8;
82 for ( Iterator iterator = getChildRecords().iterator(); iterator.hasNext(); )
83 {
84 EscherRecord r = (EscherRecord) iterator.next();
85 pos += r.serialize(pos, data, listener );
86 }
87
88 listener.afterRecordSerialize( pos, getRecordId(), pos - offset, this );
89 return pos - offset;
90 }
91
92 public int getRecordSize()
93 {
94 int childRecordsSize = 0;
95 for ( Iterator iterator = getChildRecords().iterator(); iterator.hasNext(); )
96 {
97 EscherRecord r = (EscherRecord) iterator.next();
98 childRecordsSize += r.getRecordSize();
99 }
100 return 8 + childRecordsSize;
101 }
102
103 public List getChildRecords()
104 {
105 return childRecords;
106 }
107
108 public void setChildRecords( List childRecords )
109 {
110 this.childRecords = childRecords;
111 }
112
113 public String getRecordName()
114 {
115 switch ((short)getRecordId())
116 {
117 case DGG_CONTAINER:
118 return "DggContainer";
119 case BSTORE_CONTAINER:
120 return "BStoreContainer";
121 case DG_CONTAINER:
122 return "DgContainer";
123 case SPGR_CONTAINER:
124 return "SpgrContainer";
125 case SP_CONTAINER:
126 return "SpContainer";
127 case SOLVER_CONTAINER:
128 return "SolverContainer";
129 default:
130 return "Container 0x" + HexDump.toHex(getRecordId());
131 }
132 }
133
134 public void display( PrintWriter w, int indent )
135 {
136 super.display( w, indent );
137 for ( Iterator iterator = childRecords.iterator(); iterator.hasNext(); )
138 {
139 EscherRecord escherRecord = (EscherRecord) iterator.next();
140 escherRecord.display( w, indent + 1 );
141 }
142 }
143
144 public void addChildRecord( EscherRecord record )
145 {
146 this.childRecords.add( record );
147 }
148
149 public String toString()
150 {
151 String nl = System.getProperty( "line.separator" );
152
153 StringBuffer children = new StringBuffer ();
154 if ( getChildRecords().size() > 0 )
155 {
156 children.append( " children: " + nl );
157 for ( Iterator iterator = getChildRecords().iterator(); iterator.hasNext(); )
158 {
159 EscherRecord record = (EscherRecord) iterator.next();
160 children.append( record.toString() );
161 }
163 }
164
165 return getClass().getName() + " (" + getRecordName() + "):" + nl +
166 " isContainer: " + isContainerRecord() + nl +
167 " options: 0x" + HexDump.toHex( getOptions() ) + nl +
168 " recordId: 0x" + HexDump.toHex( getRecordId() ) + nl +
169 " numchildren: " + getChildRecords().size() + nl +
170 children.toString();
171
172 }
173
174 public EscherSpRecord getChildById( short recordId )
175 {
176 for ( Iterator iterator = childRecords.iterator(); iterator.hasNext(); )
177 {
178 EscherRecord escherRecord = (EscherRecord) iterator.next();
179 if (escherRecord.getRecordId() == recordId)
180 return (EscherSpRecord) escherRecord;
181 }
182 return null;
183 }
184
185 }
186 |
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