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21 package org.jacorb.collection;
22
23
24
25 import org.jacorb.util.ObjectUtil;
26
27 import org.omg.CosCollection.*;
28
29
30
31 public class SequenceFactoryImpl extends SequenceFactoryPOA implements IteratorFactory {
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33 public final static String  IMPL_CATEGORY = "ArrayBased";
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35 private org.omg.PortableServer.POA poa;
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37 public SequenceFactoryImpl( org.omg.PortableServer.POA poa ){
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39 this.poa = poa;
40
41 try {
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43 poa.servant_to_reference(this);
44
45 } catch( Exception e ){
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47 System.out.println( "Internal error: Can not activate factory" );
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49 e.printStackTrace();
50
51 throw new org.omg.CORBA.INTERNAL ();
52
53 }
54
55 };
56
57 public CSequence create( Operations ops, int expected_size ){
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59 return create( ops, expected_size, poa );
60
61 };
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63 public CSequence create( String ops_class, int expected_size ){
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65 OperationsOperations ops = null;
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67 try {
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69 Class operation_class = ObjectUtil.classForName( ops_class );
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71 ops = (OperationsOperations)operation_class.newInstance();
72
73 } catch ( Exception e ){
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75 System.out.println( "Internal error: Can not instantiate object of class \""+ops_class+"\"" );
76
77 throw new org.omg.CORBA.INTERNAL ();
78
79 };
80
81 return create( ops, expected_size, poa );
82
83 };
84
85 public CSequence create( OperationsOperations ops, int expected_size, org.omg.PortableServer.POA poa ){
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87 SequenceImpl collection = new SequenceImpl( ops, poa, this, expected_size );
88
89 CSequence collection_ref = null;
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91 CSequencePOATie srvnt = new CSequencePOATie( collection );
92
93 try {
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95 collection_ref = CSequenceHelper.narrow(poa.servant_to_reference(srvnt));
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97 collection.set_servant( srvnt );
98
99 } catch(Exception e) {
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101 System.out.println("Internal error: Can not Activate collection");
102
103 e.printStackTrace();
104
105 throw new org.omg.CORBA.INTERNAL ();
106
107 }
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109 return collection_ref;
110
111 };
112
113 public Collection generic_create( NVPair[] parameters) throws ParameterInvalid{
114
115 NVPairManager pm = new NVPairManager( parameters );
116
117 String collection_interface = pm.find_string_param( CollectionService.COL_INTRF );
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119 String implementation_interface = pm.find_string_param( CollectionService.IMPL_INTRF );
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121 String implementation_category = pm.find_string_param( CollectionService.IMPL_CAT );
122
123 if( implementation_category != null && !implementation_category.equals( IMPL_CATEGORY ) ) {
124
125 throw new ParameterInvalid( pm.find_param_idx( CollectionService.IMPL_CAT ), "CollectionFactory : not support implementation category "+implementation_category );
126
127 }
128
129 Integer size = pm.find_ulong_param( CollectionService.EXP_SIZE );
130
131 if ( size == null ) {
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133 size = new Integer (10);
134
135 }
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137 Operations ops = pm.find_operations_param( CollectionService.OPERATIONS );
138
139 if ( ops == null ) {
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141 String ops_class = pm.find_string_param( CollectionService.OPERATIONS_CLASS );
142
143 if( ops_class == null ){
144
145 throw new ParameterInvalid( pm.find_param_idx(CollectionService.OPERATIONS), "CollectionFactory: OPERATION object not defined" );
146
147 }
148
149 return create( ops_class, size.intValue() );
150
151 } else {
152
153 return create( ops, size.intValue() );
154
155 }
156
157 };
158
159 public PositionalIteratorImpl create_iterator( CollectionImpl collection, boolean read_only ){
160
161 return create_iterator( collection, read_only, false );
162
163 };
164
165 public PositionalIteratorImpl create_iterator( CollectionImpl collection, boolean read_only, boolean reverse ){
166
167 return new SequentialIteratorImpl( (SequentialCollectionImpl)collection, read_only, reverse );
168
169 };
170
171 }
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