Source Code Cross Referenced for AssemblerGroup.java in  » RSS-RDF » Jena-2.5.5 » com » hp » hpl » jena » assembler » assemblers » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » RSS RDF » Jena 2.5.5 » com.hp.hpl.jena.assembler.assemblers 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         	(c) Copyright 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
003:         	All rights reserved - see end of file.
004:         	$Id: AssemblerGroup.java,v 1.14 2008/01/02 12:09:36 andy_seaborne Exp $
005:         */
006:
007:        package com.hp.hpl.jena.assembler.assemblers;
008:
009:        import java.util.*;
010:
011:        import com.hp.hpl.jena.assembler.*;
012:        import com.hp.hpl.jena.assembler.exceptions.*;
013:        import com.hp.hpl.jena.rdf.model.*;
014:        import com.hp.hpl.jena.vocabulary.RDFS;
015:
016:        public abstract class AssemblerGroup extends AssemblerBase implements 
017:                Assembler {
018:            public abstract AssemblerGroup implementWith(Resource type,
019:                    Assembler a);
020:
021:            public abstract Assembler assemblerFor(Resource type);
022:
023:            public Model openModel(Resource resource) {
024:                return (Model) open(resource);
025:            }
026:
027:            public static AssemblerGroup create() {
028:                return new ExpandingAssemblerGroup();
029:            }
030:
031:            public AssemblerGroup copy() {
032:                ExpandingAssemblerGroup result = (ExpandingAssemblerGroup) create();
033:                result.internal.mappings
034:                        .putAll(((ExpandingAssemblerGroup) this ).internal.mappings);
035:                return result;
036:            }
037:
038:            public static class Frame {
039:                public final Resource root;
040:                public final Resource type;
041:                public final Class assembler;
042:
043:                public Frame(Resource root, Resource type, Class assembler) {
044:                    this .root = root;
045:                    this .type = type;
046:                    this .assembler = assembler;
047:                }
048:
049:                public boolean equals(Object other) {
050:                    return other instanceof  Frame && same((Frame) other);
051:                }
052:
053:                protected boolean same(Frame other) {
054:                    return root.equals(other.root) && type.equals(other.type)
055:                            && assembler.equals(other.assembler);
056:                }
057:
058:                public String toString() {
059:                    return "root: " + root + " with type: " + type
060:                            + " assembler class: " + assembler;
061:                }
062:            }
063:
064:            public static class ExpandingAssemblerGroup extends AssemblerGroup {
065:                PlainAssemblerGroup internal = new PlainAssemblerGroup();
066:                Model implementTypes = ModelFactory.createDefaultModel();
067:
068:                public Object open(Assembler a, Resource suppliedRoot, Mode mode) {
069:                    List doing = new ArrayList();
070:                    Resource root = AssemblerHelp.withFullModel(suppliedRoot);
071:                    loadClasses(root.getModel());
072:                    root.getModel().add(implementTypes);
073:                    return internal.open(a, root, mode);
074:                }
075:
076:                public void loadClasses(Model model) {
077:                    AssemblerHelp.loadArbitraryClasses(this , model);
078:                    AssemblerHelp.loadAssemblerClasses(this , model);
079:                }
080:
081:                public AssemblerGroup implementWith(Resource type, Assembler a) {
082:                    implementTypes.add(type, RDFS.subClassOf, JA.Object);
083:                    internal.implementWith(type, a);
084:                    return this ;
085:                }
086:
087:                public Assembler assemblerFor(Resource type) {
088:                    return internal.assemblerFor(type);
089:                }
090:
091:                public Set implements Types() {
092:                    return implementTypes.listStatements().mapWith(
093:                            Statement.Util.getSubject).toSet();
094:                }
095:            }
096:
097:            static class PlainAssemblerGroup extends AssemblerGroup {
098:                Map mappings = new HashMap();
099:
100:                public Object open(Assembler a, Resource root, Mode mode) {
101:                    Set types = AssemblerHelp
102:                            .findSpecificTypes(root, JA.Object);
103:                    if (types.size() == 0)
104:                        throw new NoSpecificTypeException(root);
105:                    else if (types.size() > 1)
106:                        throw new AmbiguousSpecificTypeException(root,
107:                                new ArrayList(types));
108:                    else
109:                        return openBySpecificType(a, root, mode,
110:                                (Resource) types.iterator().next());
111:                }
112:
113:                private Object openBySpecificType(Assembler a, Resource root,
114:                        Mode mode, Resource type) {
115:                    Assembler toUse = assemblerFor(type);
116:                    Class aClass = toUse == null ? null : toUse.getClass();
117:                    Frame frame = new Frame(root, type, aClass);
118:                    try {
119:                        if (toUse == null)
120:                            throw new NoImplementationException(this , root,
121:                                    type);
122:                        else
123:                            return toUse.open(a, root, mode);
124:                    } catch (AssemblerException e) {
125:                        throw e.pushDoing(frame);
126:                    } catch (Exception e) {
127:                        AssemblerException x = new AssemblerException(root,
128:                                "caught: " + e.getMessage(), e);
129:                        throw x.pushDoing(frame);
130:                    }
131:                }
132:
133:                public AssemblerGroup implementWith(Resource type, Assembler a) {
134:                    mappings.put(type, a);
135:                    return this ;
136:                }
137:
138:                public Assembler assemblerFor(Resource type) {
139:                    return (Assembler) mappings.get(type);
140:                }
141:            }
142:        }
143:
144:        /*
145:         * (c) Copyright 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
146:         * All rights reserved.
147:         *
148:         * Redistribution and use in source and binary forms, with or without
149:         * modification, are permitted provided that the following conditions
150:         * are met:
151:         * 1. Redistributions of source code must retain the above copyright
152:         *    notice, this list of conditions and the following disclaimer.
153:         * 2. Redistributions in binary form must reproduce the above copyright
154:         *    notice, this list of conditions and the following disclaimer in the
155:         *    documentation and/or other materials provided with the distribution.
156:         * 3. The name of the author may not be used to endorse or promote products
157:         *    derived from this software without specific prior written permission.
158:         *
159:         * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
160:         * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
161:         * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
162:         * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
163:         * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
164:         * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
165:         * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
166:         * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
167:         * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
168:         * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
169:         */
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