gvsig-tools / org.gvsig.tools / library / trunk / org.gvsig.tools / org.gvsig.tools.lib / src / main / java / org / gvsig / tools / dataTypes / impl / DefaultDataTypesManager.java @ 728
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package org.gvsig.tools.dataTypes.impl; |
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import java.io.File; |
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import java.net.URI; |
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import java.net.URL; |
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import java.util.ArrayList; |
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import java.util.Date; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.Set; |
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import java.sql.Timestamp; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import org.gvsig.tools.dataTypes.CoercionException; |
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import org.gvsig.tools.dataTypes.DataType; |
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import org.gvsig.tools.dataTypes.DataTypes; |
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import org.gvsig.tools.dataTypes.DataTypesManager; |
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import org.gvsig.tools.dataTypes.impl.coercion.CoerceToBoolean; |
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import org.gvsig.tools.dataTypes.impl.coercion.CoerceToByte; |
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import org.gvsig.tools.dataTypes.impl.coercion.CoerceToDate; |
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import org.gvsig.tools.dataTypes.impl.coercion.CoerceToDateTime; |
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import org.gvsig.tools.dataTypes.impl.coercion.CoerceToDouble; |
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import org.gvsig.tools.dataTypes.impl.coercion.CoerceToFile; |
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import org.gvsig.tools.dataTypes.impl.coercion.CoerceToFloat; |
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import org.gvsig.tools.dataTypes.impl.coercion.CoerceToInt; |
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import org.gvsig.tools.dataTypes.impl.coercion.CoerceToLong; |
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import org.gvsig.tools.dataTypes.impl.coercion.CoerceToString; |
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import org.gvsig.tools.dataTypes.impl.coercion.CoerceToTime; |
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import org.gvsig.tools.dataTypes.impl.coercion.CoerceToURI; |
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import org.gvsig.tools.dataTypes.impl.coercion.CoerceToURL; |
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import org.gvsig.tools.dataTypes.impl.coercion.CoerceToTimestamp; |
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import org.gvsig.tools.dynobject.DynObject; |
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public class DefaultDataTypesManager implements DataTypesManager, DataTypes { |
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private static final Logger LOG = LoggerFactory |
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.getLogger(DefaultDataTypesManager.class); |
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private static final int NEWINDEXES_AT = OBJECT + 1; |
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private DataType[] types = new DefaultDataType[MAX_TYPE_VALUE]; |
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public DefaultDataTypesManager() {
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this.addtype(BOOLEAN, null, "Boolean", Boolean.class, |
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new CoerceToBoolean());
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this.addtype(BYTE, null, "Byte", Byte.class, new CoerceToByte()); |
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this.addtype(CHAR, null, "Char", Character.class, new CoerceToString()); |
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this.addtype(INT, null, "Integer", Integer.class, new CoerceToInt()); |
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this.addtype(LONG, null, "Long", Long.class, new CoerceToLong()); |
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this.addtype(FLOAT, null, "Float", Float.class, new CoerceToFloat()); |
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this.addtype(DOUBLE, null, "Double", Double.class, new CoerceToDouble()); |
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this.addtype(STRING, null, "String", String.class, new CoerceToString()); |
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this.addtype(DATE, SUBTYPE_DATE, "Date", Date.class, new CoerceToDate()); |
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this.addtype(TIME, SUBTYPE_DATE, "Time", Date.class, new CoerceToTime()); |
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this.addtype(TIMESTAMP, null, "Timestamp", Timestamp.class, new CoerceToTimestamp()); |
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this.addtype(BYTEARRAY, null, "ByteArray", null, null); |
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this.addtype(FILE, SUBTYPE_FILE, "File", File.class, new CoerceToFile()); |
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this.addtype(FOLDER, SUBTYPE_FOLDER, "Folder", File.class, |
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new CoerceToFile());
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this.addtype(DYNOBJECT, null, "DynObject", DynObject.class, null); |
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this.addtype(URL, null, "URL", URL.class, new CoerceToURL()); |
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this.addtype(URI, null, "URI", URI.class, new CoerceToURI()); |
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this.addtype(ARRAY, null, "Array", null, null); |
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this.addtype(LIST, null, "List", List.class, null); |
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this.addtype(SET, null, "Set", Set.class, null); |
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this.addtype(MAP, null, "Map", Map.class, null); |
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this.addtype(OBJECT, null, "Object", null, null); |
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} |
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public synchronized int addtype(int type, String subtype, String name, |
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Class defaultClass, Coercion coercion) {
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if (type == INVALID) {
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type = getNewObjectIndexType(); |
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} |
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if (type < 1 || type > MAX_TYPE_VALUE) { |
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throw new IllegalArgumentException("Wrong type " |
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+ Integer.toHexString(type).toUpperCase() + "."); |
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} |
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try {
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// Check if the type has been already registereds
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get(type); |
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throw new IllegalArgumentException("type " |
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+ Integer.toHexString(type).toUpperCase() + ", name " + name |
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+ ", already registered as " + getTypeName(type) + "."); |
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} catch (IllegalArgumentException e) { |
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// OK, the type is still not registered.
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} |
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DataType dataType = |
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new DefaultDataType(type, subtype, name, defaultClass, coercion);
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types[type] = dataType; |
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LOG.debug("Registered data type {}.", dataType.toString());
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return type;
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} |
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private int getNewObjectIndexType() { |
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for (int i = NEWINDEXES_AT; i <= MAX_TYPE_VALUE; i++) { |
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if (types[i] == null) { |
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return i;
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} |
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} |
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return DataTypes.INVALID;
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} |
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public DataType get(int type) { |
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DataType dataType = null;
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if (type > 0 && type <= MAX_TYPE_VALUE) { |
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dataType = types[type]; |
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} |
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if (dataType == null) { |
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throw new IllegalArgumentException("DataType " + type |
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+ " not registered");
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} |
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return dataType;
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} |
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public boolean isValidType(int type) { |
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return type > 0 && type <= MAX_TYPE_VALUE && this.types[type] != null; |
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} |
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public boolean isObject(int type) { |
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return (type & DataTypes.OBJECT) == DataTypes.OBJECT;
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} |
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public boolean isContainer(int type) { |
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return (type & DataTypes.CONTAINER) == DataTypes.CONTAINER;
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} |
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public int getType(String name) { |
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if (name != null) { |
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for (int i = 0; i < types.length; i++) { |
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if (types[i] != null |
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&& name.equalsIgnoreCase(types[i].getName())) { |
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return i;
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} |
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} |
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} |
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return DataTypes.INVALID;
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} |
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public String getTypeName(int type) { |
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DataType dataType = get(type); |
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String name = dataType.getName();
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if (name == null) { |
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return "unknow"; |
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} |
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return name;
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} |
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public Class getDefaultClass(int type) { |
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DataType dataType = get(type); |
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return dataType.getDefaultClass();
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} |
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public String getSubtype(int type) { |
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DataType dataType = get(type); |
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return dataType.getSubtype();
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} |
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public Coercion getCoercion(int type) { |
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DataType dataType = get(type); |
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return dataType.getCoercion();
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} |
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public void setCoercion(int type, Coercion coercion) { |
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DataType dataType = get(type); |
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dataType.setCoercion(coercion); |
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} |
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public void addCoercion(int type, Coercion coercion) { |
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DataType dataType = get(type); |
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dataType.addCoercion(coercion); |
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} |
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public Object coerce(int type, Object value) throws CoercionException { |
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DataType dataType = get(type); |
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return dataType.coerce(value);
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} |
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public Iterator iterator() { |
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List list = new ArrayList(); |
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DataType type = null;
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for (int i = 0; i < this.types.length; i++) { |
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type = this.types[i];
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if (type != null) |
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list.add(this.types[i]);
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} |
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return list.iterator();
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} |
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public DataType getDataType(Class defaultClass) { |
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// First look for a class with exact match
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for (int i = 0; i < types.length; i++) { |
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if (types[i] != null) { |
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Class typeClass = types[i].getDefaultClass();
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if (typeClass != null && typeClass.equals(defaultClass)) { |
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return types[i];
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} |
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} |
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} |
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// Then look for a class which is an interface or parent
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for (int i = 0; i < types.length; i++) { |
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if (types[i] != null) { |
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Class typeClass = types[i].getDefaultClass();
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if (typeClass != null |
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&& typeClass.isAssignableFrom(defaultClass)) { |
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return types[i];
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} |
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} |
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} |
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throw new IllegalArgumentException( |
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"There is not any registered data type with the class or a "
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+ "parent of the class: " + defaultClass);
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} |
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} |