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comparison src/org/tn5250j/encoding/ToolboxCodePageFactory.java @ 112:77ac18bc1b2f

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cleanup java formatting
author Carl Byington <carl@five-ten-sg.com>
date Wed, 18 Jun 2014 13:03:01 -0700
parents ab8d2f6c5847
children
comparison
equal deleted inserted replaced
111:6a0ad4d384ea 112:77ac18bc1b2f
32 import android.util.Log; 32 import android.util.Log;
33 33
34 34
35 class ToolboxCodePageFactory { 35 class ToolboxCodePageFactory {
36 private static final String TAG = "ToolboxCodePageFactory"; 36 private static final String TAG = "ToolboxCodePageFactory";
37 private final static String[] CODEPAGES = { "Big5", "Cp037", "Cp273", "Cp277", "Cp278", 37 private final static String[] CODEPAGES = { "Big5", "Cp037", "Cp273", "Cp277", "Cp278",
38 "Cp280", "Cp284", "Cp285", "Cp297", "Cp420", "Cp424", "Cp437", 38 "Cp280", "Cp284", "Cp285", "Cp297", "Cp420", "Cp424", "Cp437",
39 "Cp500", "Cp737", "Cp775", "Cp838", "Cp850", "Cp852", "Cp855", 39 "Cp500", "Cp737", "Cp775", "Cp838", "Cp850", "Cp852", "Cp855",
40 "Cp856", "Cp857", "Cp858", "Cp860", "Cp861", "Cp862", "Cp863", 40 "Cp856", "Cp857", "Cp858", "Cp860", "Cp861", "Cp862", "Cp863",
41 "Cp864", "Cp865", "Cp866", "Cp868", "Cp869", "Cp870", 41 "Cp864", "Cp865", "Cp866", "Cp868", "Cp869", "Cp870",
42 "Cp871", "Cp874", "Cp875", "Cp918", "Cp921", "Cp922", 42 "Cp871", "Cp874", "Cp875", "Cp918", "Cp921", "Cp922",
43 "Cp923", // IBM Latin-9. 43 "Cp923", // IBM Latin-9.
44 "Cp930", "Cp933", "Cp935", "Cp937", "Cp939", "Cp942", "Cp943", 44 "Cp930", "Cp933", "Cp935", "Cp937", "Cp939", "Cp942", "Cp943",
45 "Cp948", "Cp949", "Cp950", "Cp964", "Cp970", "Cp1006", "Cp1025", 45 "Cp948", "Cp949", "Cp950", "Cp964", "Cp970", "Cp1006", "Cp1025",
46 "Cp1026", "Cp1046", "Cp1097", "Cp1098", "Cp1112", "Cp1122", 46 "Cp1026", "Cp1046", "Cp1097", "Cp1098", "Cp1112", "Cp1122",
47 "Cp1123", "Cp1124", "Cp1140", "Cp1141", "Cp1142", "Cp1143", 47 "Cp1123", "Cp1124", "Cp1140", "Cp1141", "Cp1142", "Cp1143",
48 "Cp1144", "Cp1145", "Cp1146", "Cp1147", "Cp1148", "Cp1149", 48 "Cp1144", "Cp1145", "Cp1146", "Cp1147", "Cp1148", "Cp1149",
49 "Cp1252", "Cp1250", "Cp1251", "Cp1253", "Cp1254", "Cp1255", 49 "Cp1252", "Cp1250", "Cp1251", "Cp1253", "Cp1254", "Cp1255",
50 "Cp1256", "Cp1257", "Cp1258", "Cp1381", "Cp1383", "Cp33722" }; 50 "Cp1256", "Cp1257", "Cp1258", "Cp1381", "Cp1383", "Cp33722"
51 };
51 52
52 private static final String CONVERTER_NAME = "com.ibm.as400.access.CharConverter"; 53 private static final String CONVERTER_NAME = "com.ibm.as400.access.CharConverter";
53 private static final String TOBYTES_NAME = "stringToByteArray"; 54 private static final String TOBYTES_NAME = "stringToByteArray";
54 private static final String TOSTRING_NAME = "byteArrayToString"; 55 private static final String TOSTRING_NAME = "byteArrayToString";
55 56
56 private static ToolboxCodePageFactory singleton; 57 private static ToolboxCodePageFactory singleton;
57 58
58 59
59 60
60 private ToolboxCodePageFactory() { 61 private ToolboxCodePageFactory() {
61 /* private for singleton */ 62 /* private for singleton */
62 } 63 }
63 64
64 public static synchronized ToolboxCodePageFactory getInstance() { 65 public static synchronized ToolboxCodePageFactory getInstance() {
65 if (singleton == null) { 66 if (singleton == null) {
66 singleton = new ToolboxCodePageFactory(); 67 singleton = new ToolboxCodePageFactory();
67 } 68 }
68 return singleton;
69 }
70 69
71 /** 70 return singleton;
72 * @return 71 }
73 */
74 public String[] getAvailableCodePages() {
75 try {
76 final ClassLoader loader = getClassLoader();
77 Class.forName(CONVERTER_NAME, false, loader);
78 return CODEPAGES;
79 } catch (Exception e) {
80 Log.i(TAG,"Couldn't locate JT400 Toolbox in classpath. Charset converters can't be used.");
81 return new String[0];
82 }
83 }
84 72
85 /** 73 /**
86 * @param encoding 74 * @return
87 * @return 75 */
88 */ 76 public String[] getAvailableCodePages() {
89 public ICodePage getCodePage(String encoding) { 77 try {
90 try { 78 final ClassLoader loader = getClassLoader();
91 ClassLoader loader = getClassLoader(); 79 Class.forName(CONVERTER_NAME, false, loader);
92 Class<?> conv_class = Class.forName(CONVERTER_NAME, true, loader); 80 return CODEPAGES;
93 Constructor<?> conv_constructor = conv_class.getConstructor(new Class[] { String.class }); 81 }
94 Method toBytes_method = conv_class.getMethod(TOBYTES_NAME, new Class[] { String.class }); 82 catch (Exception e) {
95 Method toString_method = conv_class.getMethod(TOSTRING_NAME, new Class[] { byte[].class }); 83 Log.i(TAG, "Couldn't locate JT400 Toolbox in classpath. Charset converters can't be used.");
96 Object convobj = conv_constructor.newInstance(new Object[] { encoding }); 84 return new String[0];
97 return new ToolboxConverterProxy(convobj, toBytes_method, toString_method); 85 }
98 } catch (Exception e) { 86 }
99 Log.w(TAG,"Can't load charset converter from JT400 Toolbox for code page " + encoding, e);
100 return null;
101 }
102 }
103 87
104 private static final ClassLoader getClassLoader() { 88 /**
105 ClassLoader loader = ToolboxCodePageFactory.class.getClassLoader(); 89 * @param encoding
106 if (loader == null) { 90 * @return
107 loader = ClassLoader.getSystemClassLoader(); 91 */
108 } 92 public ICodePage getCodePage(String encoding) {
109 return loader; 93 try {
110 } 94 ClassLoader loader = getClassLoader();
95 Class<?> conv_class = Class.forName(CONVERTER_NAME, true, loader);
96 Constructor<?> conv_constructor = conv_class.getConstructor(new Class[] { String.class });
97 Method toBytes_method = conv_class.getMethod(TOBYTES_NAME, new Class[] { String.class });
98 Method toString_method = conv_class.getMethod(TOSTRING_NAME, new Class[] { byte[].class });
99 Object convobj = conv_constructor.newInstance(new Object[] { encoding });
100 return new ToolboxConverterProxy(convobj, toBytes_method, toString_method);
101 }
102 catch (Exception e) {
103 Log.w(TAG, "Can't load charset converter from JT400 Toolbox for code page " + encoding, e);
104 return null;
105 }
106 }
111 107
112 private static class ToolboxConverterProxy implements ICodePage { 108 private static final ClassLoader getClassLoader() {
109 ClassLoader loader = ToolboxCodePageFactory.class.getClassLoader();
113 110
114 private final Object converter; 111 if (loader == null) {
115 private final Method tobytesMethod; 112 loader = ClassLoader.getSystemClassLoader();
116 private final Method tostringMethod; 113 }
117 114
118 private ToolboxConverterProxy(Object converterObject, Method tobytesMethod, Method tostringMethod) { 115 return loader;
119 super(); 116 }
120 this.converter = converterObject;
121 this.tobytesMethod = tobytesMethod;
122 this.tostringMethod = tostringMethod;
123 }
124 117
125 public char ebcdic2uni(int index) { 118 private static class ToolboxConverterProxy implements ICodePage {
126 Object result;
127 try {
128 result = tostringMethod.invoke(converter, new Object[] { new byte[] { (byte) (index & 0xFF) } });
129 } catch (Throwable t) {
130 result = null;
131 }
132 119
133 if (result == null) 120 private final Object converter;
134 return 0x00; 121 private final Method tobytesMethod;
122 private final Method tostringMethod;
135 123
136 return ((String) result).charAt(0); 124 private ToolboxConverterProxy(Object converterObject, Method tobytesMethod, Method tostringMethod) {
137 } 125 super();
126 this.converter = converterObject;
127 this.tobytesMethod = tobytesMethod;
128 this.tostringMethod = tostringMethod;
129 }
138 130
139 public byte uni2ebcdic(char index) { 131 public char ebcdic2uni(int index) {
140 Object result; 132 Object result;
141 try {
142 result = tobytesMethod.invoke(converter, new Object[] { new String(new char[] { index }) });
143 } catch (Throwable t) {
144 result = null;
145 }
146 133
147 if (result == null) 134 try {
148 return 0x00; 135 result = tostringMethod.invoke(converter, new Object[] { new byte[] { (byte)(index & 0xFF) } });
136 }
137 catch (Throwable t) {
138 result = null;
139 }
149 140
150 return ((byte[]) result)[0]; 141 if (result == null)
151 } 142 return 0x00;
152 } 143
144 return ((String) result).charAt(0);
145 }
146
147 public byte uni2ebcdic(char index) {
148 Object result;
149
150 try {
151 result = tobytesMethod.invoke(converter, new Object[] { new String(new char[] { index }) });
152 }
153 catch (Throwable t) {
154 result = null;
155 }
156
157 if (result == null)
158 return 0x00;
159
160 return ((byte[]) result)[0];
161 }
162 }
153 163
154 } 164 }