Source Code Cross Referenced for XmlParameterResource.java in  » XML » activexml » org » xdev » base » resource » xml » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » XML » activexml » org.xdev.base.resource.xml 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Created on Feb 13, 2004
003:         *
004:         * To change the template for this generated file go to
005:         * Window>Preferences>Java>Code Generation>Code and Comments
006:         */
007:        package org.xdev.base.resource.xml;
008:
009:        import java.util.HashMap;
010:
011:        import org.jaxen.jdom.JDOMXPath;
012:        import org.jdom.Attribute;
013:        import org.jdom.Document;
014:        import org.jdom.Element;
015:        import org.xdev.base.core.compiler.AXCompiler;
016:        import org.xdev.base.resource.AbstractDataResource;
017:        import org.xdev.base.xssl.XSSLAction;
018:        import org.xdev.base.xssl.XSSLReturn;
019:
020:        /**
021:         * @author AYegorov
022:         *
023:         * To change the template for this generated type comment go to
024:         * Window>Preferences>Java>Code Generation>Code and Comments
025:         */
026:        public class XmlParameterResource extends AbstractDataResource {
027:            protected Element root = null;
028:
029:            private StringBuffer buffer = new StringBuffer();
030:
031:            private Object returnValue = null;
032:
033:            /**
034:             * @param id
035:             */
036:            public XmlParameterResource(String id) {
037:                super (id);
038:                // XXX Auto-generated constructor stub
039:            }
040:
041:            /**
042:             * @param id
043:             * @param properties
044:             */
045:            public XmlParameterResource(String id, HashMap properties) {
046:                super (id, properties);
047:                // XXX Auto-generated constructor stub
048:            }
049:
050:            /* (non-Javadoc)
051:             * @see org.xdev.base.resource.AbstractDataResource#initialize()
052:             */
053:            protected void initialize() throws Exception {
054:                this .root = ((Document) this .getResourceConnection())
055:                        .getRootElement();
056:            }
057:
058:            protected void set() throws Exception {
059:                if (this .hasProperty("path")) {
060:                    super .ds = new XmlDataSource();
061:
062:                    super .ds.setProperty("path", this .getProperty("path"));
063:
064:                    super .ds.initialize();
065:
066:                    String dataSourceId = this .getProperty("datasource-id");
067:
068:                    if ("".equals(dataSourceId)) {
069:                        dataSourceId = this .getReferenceId();
070:                    }
071:
072:                    if (dataSourceId != null && !"".equals(dataSourceId)) {
073:                        AXCompiler.getInstance().addDataSource(dataSourceId,
074:                                super .ds);
075:                    }
076:                }
077:
078:                super .set();
079:            }
080:
081:            protected void invoke() throws Exception {
082:                if (this .hasProperty("expression")) {
083:                    this .buffer.setLength(0);
084:
085:                    this .buffer.append(this .getProperty("expression"));
086:                }
087:
088:                this .returnValue = this .search(new JDOMXPath(this .buffer
089:                        .toString()));
090:            }
091:
092:            /* (non-Javadoc)
093:             * @see org.xdev.base.xssl.XSSLActionIterator#invoke(org.xdev.base.xssl.XSSLAction)
094:             */
095:            protected void invoke(XSSLAction component) throws Exception {
096:                this .buffer.append(((XSSLReturn) component).getObjectValue());
097:            }
098:
099:            protected String search(JDOMXPath xpath) throws Exception {
100:                Object obj = xpath.selectSingleNode(this .root);
101:
102:                String value = "";
103:
104:                if (obj instanceof  Element) {
105:                    value = ((Element) obj).getTextTrim();
106:                } else if (obj instanceof  Attribute) {
107:                    value = ((Attribute) obj).getValue();
108:                }
109:
110:                return value;
111:            }
112:
113:            public Object getObjectValue() {
114:                return this .returnValue;
115:            }
116:
117:            /* (non-Javadoc)
118:             * @see org.xdev.base.xssl.manage.TransactionFinalizable#doFinalize()
119:             */
120:            public void doFinalize() throws Exception {
121:            }
122:        }
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