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17
18
19
20 package org.apache.poi.generator;
21
22
27 public class FieldIterator
28 {
29 protected int offset;
30
31 public FieldIterator()
32 {
33 }
34
35 public void init(org.apache.xalan.extensions.XSLProcessorContext context,
36 org.apache.xalan.templates.ElemExtensionCall extElem)
37 {
38 offset = 0;
39 }
40
41
47 public String  fillDecoder(String size, String type)
48 {
49 String javaType = RecordUtil.getType(size, type, 0);
50
51 String result = "";
52 if (javaType.equals("short"))
53 result = "LittleEndian.getShort(data, pos + 0x" + Integer.toHexString(offset) + " + offset)";
54 else if (javaType.equals("short[]"))
55 result = "LittleEndian.getShortArray(data, pos + 0x" + Integer.toHexString(offset) + " + offset)";
56 else if (javaType.equals("int"))
57 result = "LittleEndian.getInt(data, pos + 0x" + Integer.toHexString(offset) + " + offset)";
58 else if (javaType.equals("byte"))
59 result = "data[ pos + 0x" + Integer.toHexString(offset) + " + offset ]";
60 else if (javaType.equals("double"))
61 result = "LittleEndian.getDouble(data, pos + 0x" + Integer.toHexString(offset) + " + offset)";
62 else if (javaType.equals("String") && !type.equals("hbstring"))
63 result = "StringUtil.getFromUnicode(data, pos + 0x" + Integer.toHexString(offset) + " + offset,("+ size + "-1)/2)";
64 else if (javaType.equals("String") && type.equals("hbstring"))
65 result = "StringUtil.getFromUnicodeHigh(data, pos + 0x" + Integer.toHexString(offset) + " + offset, ("+ size+"/2))";
66
67 try
68 {
69 offset += Integer.parseInt(size);
70 }
71 catch (NumberFormatException ignore)
72 {
73 }
74 return result;
75 }
76
77 public String fillDecoder2(int position, String name, String size, String type)
78 {
79 if (type.startsWith("custom:"))
80 {
81 StringBuffer result = new StringBuffer ();
82 result.append( RecordUtil.getFieldName( position, name, 0 ) );
83 result.append( " = new " );
84 String javaType = type.substring( 7 );
85 result.append(javaType);
86 result.append( "();\n");
87 result.append( " pos += " );
88 result.append(RecordUtil.getFieldName(position, name, 0))
89 .append(".fillField(data,size,pos + offset + ")
90 .append(offset)
91 .append(")");
92 return result.toString();
93 }
94 else
95 {
96 return RecordUtil.getFieldName(position, name, 30) +
97 " = " + fillDecoder(size, type);
98 }
99 }
100
101
102 public String serialiseEncoder( int fieldNumber, String fieldName, String size, String type)
104 {
105 String javaType = RecordUtil.getType(size, type, 0);
106 String javaFieldName = RecordUtil.getFieldName(fieldNumber,fieldName,0);
107
108 String result = "";
109 if (type.startsWith("custom:"))
110 result = "pos += " + javaFieldName + ".serializeField( pos + " + (offset+4) + " + offset, data );";
111 else if (javaType.equals("short"))
112 result = "LittleEndian.putShort(data, " + (offset+4) + " + offset + pos, " + javaFieldName + ");";
113 else if (javaType.equals("short[]"))
114 result = "LittleEndian.putShortArray(data, " + (offset+4) + " + offset + pos, " + javaFieldName + ");";
115 else if (javaType.equals("int"))
116 result = "LittleEndian.putInt(data, " + (offset+4) + " + offset + pos, " + javaFieldName + ");";
117 else if (javaType.equals("byte"))
118 result = "data[ " + (offset+4) + " + offset + pos ] = " + javaFieldName + ";";
119 else if (javaType.equals("double"))
120 result = "LittleEndian.putDouble(data, " + (offset+4) + " + offset + pos, " + javaFieldName + ");";
121 else if (javaType.equals("String") && !type.equals("hbstring"))
122 result = "StringUtil.putUncompressedUnicode("+ javaFieldName +", data, offset + pos + 4);";
123 else if (javaType.equals("String") && type.equals("hbstring"))
124 result = "StringUtil.putUncompressedUnicodeHigh("+ javaFieldName +", data, "+(offset+4)+" + offset + pos);";
125
126
127 try
128 {
129 offset += Integer.parseInt(size);
130 }
131 catch (NumberFormatException ignore)
132 {
133 }
134 return result;
135
136 }
137
138 public String calcSize( int fieldNumber, String fieldName, String size, String type)
139 {
140 String result = " + ";
141 if (type.startsWith("custom:"))
142 {
143 String javaFieldName = RecordUtil.getFieldName(fieldNumber, fieldName, 0);
144 return result + javaFieldName + ".getSize()";
145 }
146 else if ("var".equals(size))
147 {
148 String javaFieldName = RecordUtil.getFieldName(fieldNumber,fieldName,0);
149 return result + " ("+javaFieldName + ".length() *2)";
150 }
151 else if ("varword".equals(size))
152 {
153 String javaFieldName = RecordUtil.getFieldName(fieldNumber,fieldName,0);
154 return result + javaFieldName + ".length * 2 + 2";
155 } else
156 {
157 return result + size;
158 }
159 }
160
161
162 }
163 |
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