svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libIverUtiles / src / org / gvsig / tools / persistence / xmlentity / XMLEntityState.java @ 28468
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| 1 | 24378 | cordinyana | package org.gvsig.tools.persistence.xmlentity; |
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| 2 | 24019 | jjdelcerro | |
| 3 | 28076 | cmartinez | import java.io.IOException; |
| 4 | import java.io.Reader; |
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| 5 | import java.io.Writer; |
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| 6 | 24042 | jjdelcerro | import java.util.Iterator; |
| 7 | 24946 | jmvivo | import java.util.NoSuchElementException; |
| 8 | 24042 | jjdelcerro | |
| 9 | 28076 | cmartinez | import org.exolab.castor.xml.MarshalException; |
| 10 | import org.exolab.castor.xml.Marshaller; |
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| 11 | import org.exolab.castor.xml.ValidationException; |
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| 12 | 24019 | jjdelcerro | import org.gvsig.tools.persistence.PersistenceException; |
| 13 | import org.gvsig.tools.persistence.PersistenceValueNotFoundException; |
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| 14 | import org.gvsig.tools.persistence.Persistent; |
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| 15 | import org.gvsig.tools.persistence.PersistentState; |
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| 16 | 28076 | cmartinez | import org.gvsig.tools.persistence.impl.AbstractPersistentState; |
| 17 | 24019 | jjdelcerro | |
| 18 | import com.iver.utiles.NotExistInXMLEntity; |
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| 19 | import com.iver.utiles.XMLEntity; |
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| 20 | 28076 | cmartinez | import com.iver.utiles.xmlEntity.generate.XmlTag; |
| 21 | 24019 | jjdelcerro | |
| 22 | 28076 | cmartinez | public class XMLEntityState extends AbstractPersistentState { |
| 23 | final private static int DATA_POS = 0; |
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| 24 | |||
| 25 | 24019 | jjdelcerro | final private static String KEY_CLASSNAME = "_classname_"; |
| 26 | 28076 | cmartinez | final private static String KEY_DATA = "_item_data_"; |
| 27 | final private static String VALUE = "_value_"; |
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| 28 | |||
| 29 | final private static String KEY_CHILD = "_childName_"; |
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| 30 | final private static String ITEM = "_iterator_item_"; |
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| 31 | |||
| 32 | public static String PROJECTENCODING = "UTF-8"; |
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| 33 | 24019 | jjdelcerro | |
| 34 | protected XMLEntity xmlEntity;
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| 35 | protected XMLEntityManager manager;
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| 36 | 28076 | cmartinez | protected XMLEntity data;
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| 37 | 24019 | jjdelcerro | |
| 38 | public XMLEntityState(XMLEntityManager manager) {
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| 39 | 28076 | cmartinez | this(manager, new XMLEntity()); |
| 40 | 24019 | jjdelcerro | } |
| 41 | |||
| 42 | public XMLEntityState(XMLEntityManager manager, XMLEntity xmlEntity) {
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| 43 | this.manager = manager;
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| 44 | this.xmlEntity = xmlEntity;
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| 45 | 28076 | cmartinez | this.data = xmlEntity.firstChild(KEY_DATA);
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| 46 | 24019 | jjdelcerro | } |
| 47 | |||
| 48 | 28076 | cmartinez | protected void init() { |
| 49 | this.data = new XMLEntity(); |
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| 50 | this.data.getXmlTag().setName(KEY_DATA);
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| 51 | this.xmlEntity.addChild(this.data); |
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| 52 | } |
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| 53 | |||
| 54 | 24019 | jjdelcerro | public XMLEntity getXMLEntity() {
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| 55 | return this.xmlEntity; |
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| 56 | } |
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| 57 | |||
| 58 | public void setTheClass(Object obj) { |
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| 59 | this.xmlEntity.putProperty(KEY_CLASSNAME, obj.getClass().getName());
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| 60 | } |
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| 61 | |||
| 62 | public void setTheClass(Class theClass) { |
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| 63 | this.xmlEntity.putProperty(KEY_CLASSNAME, theClass.getName());
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| 64 | } |
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| 65 | |||
| 66 | public void setTheClass(String name) { |
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| 67 | this.xmlEntity.putProperty(KEY_CLASSNAME, name);
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| 68 | } |
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| 69 | |||
| 70 | public String getTheClassName() { |
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| 71 | 28076 | cmartinez | return this.xmlEntity.getStringProperty(KEY_CLASSNAME); |
| 72 | } |
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| 73 | |||
| 74 | protected XMLEntity getData() {
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| 75 | if (this.data==null) { |
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| 76 | init(); |
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| 77 | 24019 | jjdelcerro | } |
| 78 | 28076 | cmartinez | return this.data; |
| 79 | 24019 | jjdelcerro | } |
| 80 | |||
| 81 | 28076 | cmartinez | protected void setName(String name) { |
| 82 | this.xmlEntity.getXmlTag().setName(name);
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| 83 | } |
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| 84 | |||
| 85 | protected String getName() { |
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| 86 | return this.xmlEntity.getXmlTag().getName(); |
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| 87 | } |
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| 88 | |||
| 89 | 24019 | jjdelcerro | public Object get(String name) throws PersistenceException { |
| 90 | 28076 | cmartinez | XMLEntity value = this.getData().firstChild(name);
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| 91 | 24019 | jjdelcerro | if( value == null ) { |
| 92 | try {
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| 93 | 28076 | cmartinez | return this.getData().getStringProperty(name); |
| 94 | 24019 | jjdelcerro | } catch (NotExistInXMLEntity e) {
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| 95 | throw new PersistenceValueNotFoundException(name, e); |
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| 96 | } |
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| 97 | } |
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| 98 | 28076 | cmartinez | return manager.create(manager.createState(value));
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| 99 | 24019 | jjdelcerro | } |
| 100 | |||
| 101 | public boolean getBoolean(String name) |
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| 102 | throws PersistenceValueNotFoundException {
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| 103 | try {
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| 104 | 28076 | cmartinez | return this.getData().getBooleanProperty(name); |
| 105 | 24019 | jjdelcerro | } catch (NotExistInXMLEntity e) {
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| 106 | throw new PersistenceValueNotFoundException(name, e); |
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| 107 | } |
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| 108 | } |
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| 109 | |||
| 110 | public double getDouble(String name) |
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| 111 | throws PersistenceValueNotFoundException {
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| 112 | try {
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| 113 | 28076 | cmartinez | return this.getData().getDoubleProperty(name); |
| 114 | 24019 | jjdelcerro | } catch (NotExistInXMLEntity e) {
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| 115 | throw new PersistenceValueNotFoundException(name, e); |
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| 116 | } |
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| 117 | } |
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| 118 | |||
| 119 | public float getFloat(String name) throws PersistenceValueNotFoundException { |
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| 120 | try {
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| 121 | 28076 | cmartinez | return this.getData().getFloatProperty(name); |
| 122 | 24019 | jjdelcerro | } catch (NotExistInXMLEntity e) {
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| 123 | throw new PersistenceValueNotFoundException(name, e); |
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| 124 | } |
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| 125 | } |
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| 126 | |||
| 127 | public int getInt(String name) throws PersistenceValueNotFoundException { |
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| 128 | try {
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| 129 | 28076 | cmartinez | return this.getData().getIntProperty(name); |
| 130 | 24019 | jjdelcerro | } catch (NotExistInXMLEntity e) {
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| 131 | throw new PersistenceValueNotFoundException(name, e); |
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| 132 | } |
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| 133 | } |
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| 134 | |||
| 135 | public long getLong(String name) throws PersistenceValueNotFoundException { |
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| 136 | try {
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| 137 | 28076 | cmartinez | return this.getData().getLongProperty(name); |
| 138 | 24019 | jjdelcerro | } catch (NotExistInXMLEntity e) {
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| 139 | throw new PersistenceValueNotFoundException(name, e); |
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| 140 | } |
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| 141 | } |
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| 142 | |||
| 143 | 28076 | cmartinez | public String getString(String name) |
| 144 | throws PersistenceValueNotFoundException {
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| 145 | return this.getData().getStringProperty(name); |
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| 146 | 24019 | jjdelcerro | } |
| 147 | |||
| 148 | 28076 | cmartinez | public void set(String name, String value) { |
| 149 | this.getData().putProperty(name, value);
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| 150 | 24019 | jjdelcerro | } |
| 151 | |||
| 152 | 28076 | cmartinez | public void set(String name, int value) { |
| 153 | this.getData().putProperty(name, value);
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| 154 | 24019 | jjdelcerro | } |
| 155 | |||
| 156 | 28076 | cmartinez | public void set(String name, long value) { |
| 157 | this.getData().putProperty(name, value);
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| 158 | 24019 | jjdelcerro | } |
| 159 | |||
| 160 | 28076 | cmartinez | public void set(String name, double value) { |
| 161 | this.getData().putProperty(name, value);
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| 162 | 24019 | jjdelcerro | } |
| 163 | |||
| 164 | 28076 | cmartinez | public void set(String name, float value) { |
| 165 | this.getData().putProperty(name, value);
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| 166 | 24019 | jjdelcerro | } |
| 167 | |||
| 168 | 28076 | cmartinez | public void set(String name, boolean value) { |
| 169 | this.getData().putProperty(name, value);
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| 170 | 24019 | jjdelcerro | } |
| 171 | |||
| 172 | 28076 | cmartinez | public void set(String name, Persistent obj) |
| 173 | 24019 | jjdelcerro | throws PersistenceException {
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| 174 | 28076 | cmartinez | XMLEntityState state = (XMLEntityState) manager.getState(obj); |
| 175 | state.setName(name); |
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| 176 | this.getData().addChild(state.xmlEntity);
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| 177 | 24019 | jjdelcerro | } |
| 178 | |||
| 179 | 28076 | cmartinez | public static class PersistentIterator implements Iterator, Persistent { |
| 180 | private XMLEntityState state = null; |
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| 181 | int current = 0; |
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| 182 | |||
| 183 | public PersistentIterator() {
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| 184 | |||
| 185 | } |
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| 186 | |||
| 187 | 24042 | jjdelcerro | public boolean hasNext() { |
| 188 | 28076 | cmartinez | return (state!=null && current< state.getData().getChildrenCount()); |
| 189 | 24042 | jjdelcerro | } |
| 190 | public Object next() { |
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| 191 | Object value = null; |
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| 192 | 28076 | cmartinez | XMLEntity xmlEntity = (XMLEntity) state.getData().getChild(current++); |
| 193 | 24042 | jjdelcerro | String className = xmlEntity.getStringProperty(KEY_CLASSNAME);
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| 194 | if (className.equals(String.class.getName())) { |
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| 195 | 28076 | cmartinez | value = xmlEntity.getObjectProperty(VALUE); |
| 196 | 24042 | jjdelcerro | } else if (className.equals(Integer.class.getName())) { |
| 197 | 28076 | cmartinez | value = xmlEntity.getIntProperty(VALUE); |
| 198 | 24042 | jjdelcerro | } else if (className.equals(Long.class.getName())) { |
| 199 | 28076 | cmartinez | value = xmlEntity.getLongProperty(VALUE); |
| 200 | 24042 | jjdelcerro | } else if (className.equals(Double.class.getName())) { |
| 201 | 28076 | cmartinez | value = xmlEntity.getDoubleProperty(VALUE); |
| 202 | 24042 | jjdelcerro | } else if (className.equals(Float.class.getName())) { |
| 203 | 28076 | cmartinez | value = xmlEntity.getFloatProperty(VALUE); |
| 204 | 24042 | jjdelcerro | } else if (className.equals(Boolean.class.getName())) { |
| 205 | 28076 | cmartinez | value = xmlEntity.getBooleanProperty(VALUE); |
| 206 | 24042 | jjdelcerro | } |
| 207 | 28076 | cmartinez | else if (className.equals(PersistentState.class)) { |
| 208 | if (xmlEntity.getChildrenCount()>0) { |
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| 209 | try {
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| 210 | value = state.manager.create(state.manager.createState(xmlEntity)); |
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| 211 | } catch (PersistenceException e) {
|
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| 212 | // FIXME
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| 213 | throw new RuntimeException(e); |
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| 214 | } |
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| 215 | } |
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| 216 | } |
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| 217 | else { // suppose it is a Persistent object |
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| 218 | try {
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| 219 | value = state.manager.create(state.manager.createState(xmlEntity)); |
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| 220 | } catch (PersistenceException e) {
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| 221 | // FIXME
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| 222 | throw new RuntimeException(e); |
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| 223 | } |
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| 224 | } |
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| 225 | 24042 | jjdelcerro | return value;
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| 226 | } |
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| 227 | 28076 | cmartinez | |
| 228 | 24042 | jjdelcerro | public void remove() { |
| 229 | throw new UnsupportedOperationException(); |
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| 230 | } |
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| 231 | 28468 | cmartinez | public void loadFromState(PersistentState state) throws PersistenceException { |
| 232 | 28076 | cmartinez | if (state instanceof XMLEntityState) { |
| 233 | this.state = (XMLEntityState) state;
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| 234 | current = 0;
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| 235 | } |
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| 236 | else {
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| 237 | 28249 | cmartinez | throw new PersistenceException("setState(PersistentState): Not supported yet"); |
| 238 | 28076 | cmartinez | } |
| 239 | 24042 | jjdelcerro | } |
| 240 | 28076 | cmartinez | |
| 241 | public void saveToState(PersistentState state) |
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| 242 | 24081 | jjdelcerro | throws PersistenceException {
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| 243 | throw new UnsupportedOperationException(); |
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| 244 | } |
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| 245 | 24042 | jjdelcerro | } |
| 246 | 28076 | cmartinez | |
| 247 | public Iterator getIterator(String name) |
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| 248 | throws PersistenceException, PersistenceValueNotFoundException
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| 249 | {
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| 250 | XMLEntity value = this.getData().firstChild(name);
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| 251 | 24042 | jjdelcerro | if (value == null) { |
| 252 | throw new PersistenceValueNotFoundException(name); |
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| 253 | } |
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| 254 | 28076 | cmartinez | return (Iterator) manager.create(manager.createState(value)); |
| 255 | 24042 | jjdelcerro | } |
| 256 | |||
| 257 | 28076 | cmartinez | public void set(String name, Iterator it) |
| 258 | 24042 | jjdelcerro | throws PersistenceException {
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| 259 | 28076 | cmartinez | XMLEntityState stateList = manager.createStateInstance(); |
| 260 | stateList.setName(name); |
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| 261 | 24042 | jjdelcerro | stateList.setTheClass(PersistentIterator.class); |
| 262 | while (it.hasNext()) {
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| 263 | Object value = it.next();
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| 264 | 28076 | cmartinez | if (value instanceof Persistent) { |
| 265 | XMLEntityState persistentState = |
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| 266 | (XMLEntityState) manager.getState((Persistent)value); |
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| 267 | persistentState.setName(ITEM); |
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| 268 | stateList.getData().addChild(persistentState.xmlEntity); |
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| 269 | } |
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| 270 | else if (value instanceof XMLEntityState) { |
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| 271 | XMLEntityState persistentState = |
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| 272 | (XMLEntityState) value; |
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| 273 | persistentState.setName(ITEM); |
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| 274 | stateList.getData().addChild(persistentState.xmlEntity); |
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| 275 | } |
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| 276 | else if (value instanceof Integer |
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| 277 | 24042 | jjdelcerro | || value instanceof Long || value instanceof Double |
| 278 | || value instanceof Float || value instanceof String |
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| 279 | || value instanceof Boolean) { |
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| 280 | 28076 | cmartinez | XMLEntityState stateItem = (XMLEntityState) manager.createStateInstance(); |
| 281 | stateItem.setName(ITEM); |
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| 282 | stateItem.xmlEntity.putProperty(KEY_CLASSNAME, value.getClass().getName()); |
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| 283 | stateItem.xmlEntity.putProperty(VALUE, value); |
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| 284 | stateList.getData().addChild(stateItem.xmlEntity); |
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| 285 | |||
| 286 | 24042 | jjdelcerro | } else {
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| 287 | 28076 | cmartinez | //TODO add a meaningful message and maybe use a more specific exception
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| 288 | throw new PersistenceException(new RuntimeException()); |
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| 289 | 24042 | jjdelcerro | } |
| 290 | } |
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| 291 | 28076 | cmartinez | // stateList.xmlEntity.putProperty(KEY_CHILD, name);
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| 292 | this.getData().addChild(stateList.xmlEntity);
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| 293 | 24042 | jjdelcerro | } |
| 294 | 28076 | cmartinez | |
| 295 | |||
| 296 | 24042 | jjdelcerro | |
| 297 | 24807 | jmvivo | private class NamesIterator implements Iterator { |
| 298 | |||
| 299 | 24946 | jmvivo | private String name; |
| 300 | private XMLEntity xmlEntity;
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| 301 | 24807 | jmvivo | private int index; |
| 302 | 24946 | jmvivo | private int propertiyCount; |
| 303 | 24807 | jmvivo | |
| 304 | public NamesIterator(XMLEntity xmlEntity) {
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| 305 | this.xmlEntity = xmlEntity;
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| 306 | 24946 | jmvivo | this.name = null; |
| 307 | 24807 | jmvivo | this.index = 0; |
| 308 | 24946 | jmvivo | this.propertiyCount = xmlEntity.getPropertyCount();
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| 309 | 24807 | jmvivo | } |
| 310 | |||
| 311 | 24946 | jmvivo | private void testNext() { |
| 312 | if (this.name != null) { |
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| 313 | return;
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| 314 | } |
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| 315 | String tmpName;
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| 316 | while (this.index < this.propertiyCount) { |
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| 317 | tmpName = this.xmlEntity.getPropertyName(index);
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| 318 | index++; |
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| 319 | if (!tmpName.equals(KEY_CHILD) || tmpName.equals(KEY_CLASSNAME)) {
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| 320 | continue;
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| 321 | } else {
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| 322 | this.name = tmpName;
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| 323 | break;
|
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| 324 | } |
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| 325 | } |
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| 326 | |||
| 327 | } |
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| 328 | |||
| 329 | 24807 | jmvivo | public boolean hasNext() { |
| 330 | 24946 | jmvivo | this.testNext();
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| 331 | return this.index < this.propertiyCount; |
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| 332 | 24807 | jmvivo | } |
| 333 | |||
| 334 | public Object next() { |
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| 335 | 24946 | jmvivo | this.testNext();
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| 336 | if (this.name == null) { |
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| 337 | throw new NoSuchElementException(); |
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| 338 | } |
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| 339 | String tmpName = this.name; |
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| 340 | this.name = null; |
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| 341 | return tmpName;
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| 342 | 24807 | jmvivo | } |
| 343 | |||
| 344 | public void remove() { |
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| 345 | throw new UnsupportedOperationException(); |
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| 346 | } |
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| 347 | |||
| 348 | } |
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| 349 | |||
| 350 | 24081 | jjdelcerro | public Iterator getNames() { |
| 351 | 24807 | jmvivo | return new NamesIterator(this.xmlEntity); |
| 352 | 24081 | jjdelcerro | } |
| 353 | 24042 | jjdelcerro | |
| 354 | 28076 | cmartinez | public void set(String name, Object value) |
| 355 | 24081 | jjdelcerro | throws PersistenceException {
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| 356 | if (value instanceof Persistent) { |
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| 357 | 28076 | cmartinez | set(name, (Persistent)value); |
| 358 | 24081 | jjdelcerro | } else if (value instanceof Integer || value instanceof Long |
| 359 | || value instanceof Double || value instanceof Float |
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| 360 | || value instanceof String || value instanceof Boolean) { |
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| 361 | 28076 | cmartinez | this.getData().putProperty(name, value);
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| 362 | } else if (value instanceof Iterator) { |
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| 363 | set(name, (Iterator)value);
|
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| 364 | } |
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| 365 | else {
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| 366 | 24081 | jjdelcerro | throw new IllegalArgumentException(name); |
| 367 | } |
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| 368 | } |
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| 369 | |||
| 370 | 28076 | cmartinez | public void load(Reader reader) throws PersistenceException { |
| 371 | try {
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| 372 | Object obj = XmlTag.unmarshal(reader);
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| 373 | xmlEntity = new XMLEntity((XmlTag)obj);
|
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| 374 | data = xmlEntity.firstChild(KEY_DATA); |
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| 375 | } catch (MarshalException e) { |
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| 376 | throw new PersistenceException(e); |
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| 377 | } catch (ValidationException e) {
|
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| 378 | throw new PersistenceException(e); |
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| 379 | } |
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| 380 | } |
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| 381 | |||
| 382 | public void save(Writer writer) throws PersistenceException { |
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| 383 | try {
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| 384 | Marshaller m = new Marshaller(writer);
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| 385 | m.setEncoding(PROJECTENCODING); |
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| 386 | m.marshal(xmlEntity.getXmlTag()); |
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| 387 | } catch (IOException e) { |
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| 388 | throw new PersistenceException(e); |
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| 389 | } catch (MarshalException e) { |
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| 390 | throw new PersistenceException(e); |
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| 391 | } catch (ValidationException e) {
|
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| 392 | throw new PersistenceException(e); |
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| 393 | } |
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| 394 | |||
| 395 | } |
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| 396 | 24019 | jjdelcerro | } |