/*
* The JabaJaba class library
* Copyright (C) 1997-2002 ASAMI, Tomoharu (asami@AsamiOffice.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package com.AsamiOffice.jaba2.util;
import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.beans.PropertyDescriptor;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Observable;
import com.AsamiOffice.text.UString;
import com.AsamiOffice.jaba2.util.property.Domain;
import com.AsamiOffice.jaba2.util.property.PropertyValue;
/**
* PropertyList
*
* @since Apr. 10, 1998
* @version Jan. 25, 2004
* @author ASAMI, Tomoharu (asami@AsamiOffice.com)
*/
public class PropertyList extends Observable implements Cloneable {
protected List entries_ = new ArrayList(); // List<Entry>
protected Map index_ = new HashMap();
protected PropertyChangeSupport support_ = null;
public PropertyList() {
}
public PropertyList(String string) {
String[] pairs = UString.getTokens(string, ";");
for (int i = 0;i < pairs.length;i++) {
String[] pair = UString.getPairTokens(pairs[i], ":");
switch (pair.length) {
case 0:
// do nothing
break;
case 1:
put("_default_", pair[0].trim());
break;
case 2:
put(pair[0].trim(), pair[1].trim());
break;
default:
throw (new InternalError());
}
}
}
public PropertyList(PropertyList properties) {
int size = properties.entries_.size();
for (int i = 0;i < size;i++) {
Entry entry = (Entry)properties.entries_.get(i);
String key = entry.key;
Object value = entry.value;
if (value instanceof Immutable) {
// do nothing
} else if (value instanceof PropertyValue) {
value = ((PropertyValue)value).clone(this);
} else if (value instanceof Cloneable) {
// XXX : do clone
} else {
// do nothing
}
put(key,
value,
entry.type,
entry.constant,
entry.domain);
Iterator iter = entry.attrs.keySet().iterator();
while (iter.hasNext()) {
String attr = (String)iter.next();
Object avalue = entry.attrs.get(attr);
setAttr(key, attr, avalue);
}
}
}
public void addPropertyChangeListener(PropertyChangeListener listener) {
if (support_ == null) {
support_ = new PropertyChangeSupport(this);
}
support_.addPropertyChangeListener(listener);
}
public void addPropertyChangeListener(
String propertyName,
PropertyChangeListener listener
) {
if (support_ == null) {
support_ = new PropertyChangeSupport(this);
}
support_.addPropertyChangeListener(propertyName, listener);
}
public void removePropertyChangeListener(PropertyChangeListener listener) {
support_.removePropertyChangeListener(listener);
}
public void removePropertyChangeListener(
String propertyName,
PropertyChangeListener listener
) {
support_.removePropertyChangeListener(propertyName, listener);
}
public boolean isValid(String key, Object value) {
Entry entry = (Entry)index_.get(key);
if (entry == null) {
return (false);
}
return (entry.domain.isValid(value));
}
protected void _firePropertyChange(
String propertyName,
Object oldValue,
Object newValue
) {
if (support_ != null) {
support_.firePropertyChange(propertyName, oldValue, newValue);
}
}
/**
* Setups property list.
*/
public void put(String key, Object value) {
Entry entry = (Entry)index_.get(key);
Class clazz;
if (value != null) {
clazz = value.getClass();
} else {
clazz = null;
}
Object oldValue = null;
if (entry != null) {
oldValue = entry.value;
if (entry.constant == true) {
throw (new InternalError("constant"));
}
entry.value = value;
entry.type = clazz;
} else {
boolean constant = false; // XXX : change default
entry = new Entry(key, value, clazz, constant);
entries_.add(entry);
index_.put(key, entry);
}
setChanged();
notifyObservers(key);
_firePropertyChange(key, oldValue, value);
}
public void put(String key, Object value, Class clazz) {
Entry entry = (Entry)index_.get(key);
Object oldValue = null;
if (entry != null) {
oldValue = entry.value;
if (entry.constant == true) {
throw (new InternalError("constant"));
}
entry.value = value;
entry.type = clazz;
} else {
boolean constant = true;
entry = new Entry(key, value, clazz, constant);
entries_.add(entry);
index_.put(key, entry);
}
setChanged();
notifyObservers(key);
_firePropertyChange(key, oldValue, value);
}
public void put(String key, Object value, Class clazz, boolean constant) {
Entry entry = (Entry)index_.get(key);
Object oldValue = null;
if (entry != null) {
oldValue = entry.value;
if (entry.constant == true) {
throw (new InternalError("constant"));
}
entry.value = value;
entry.type = clazz;
entry.constant = constant;
} else {
entry = new Entry(key, value, clazz, constant);
entries_.add(entry);
index_.put(key, entry);
}
setChanged();
notifyObservers(key);
_firePropertyChange(key, oldValue, value);
}
public void put(
String key,
Object value,
Class clazz,
boolean constant,
Domain domain
) {
Entry entry = (Entry)index_.get(key);
Object oldValue = null;
if (entry != null) {
oldValue = entry.value;
if (entry.constant == true) {
throw (new InternalError("constant"));
}
entry.value = value;
entry.type = clazz;
entry.constant = constant;
entry.domain = domain;
} else {
entry = new Entry(key, value, clazz, constant, domain);
entries_.add(entry);
index_.put(key, entry);
}
setChanged();
notifyObservers(key);
_firePropertyChange(key, oldValue, value);
}
public String[] getKeys() {
int size = entries_.size();
String[] keys = new String[size];
for (int i = 0;i < size;i++) {
Entry entry = (Entry)entries_.get(i);
keys[i] = entry.key;
}
return (keys);
}
/**
* Updates value of the property list.
*/
public void set(String key, Object value) throws IllegalArgumentException {
Entry entry = (Entry)index_.get(key);
if (entry == null) {
throw (new IllegalArgumentException("non exist key"));
}
if (!entry.domain.isValid(value)) {
throw (new IllegalArgumentException("invalid value : " + value));
}
Object oldValue = entry.value;
entry.value = value;
setChanged();
notifyObservers(key);
_firePropertyChange(key, oldValue, value);
}
public Object get(String key) {
Entry entry = (Entry)index_.get(key);
if (entry == null) {
return (null);
} else {
return (entry.value);
}
}
public Object get(String key, Object defaultObject) {
Object object = get(key);
if (object != null) {
return (object);
} else {
return (defaultObject);
}
}
public Object getPrimary() {
return (get("_default_"));
}
public Object getPrimary(Object defaultObject) {
return (get("_default_", defaultObject));
}
public String getString(String key) {
return ((String)get(key));
}
public String getString(String key, String defaultString) {
return ((String)get(key, defaultString));
}
public Class getType(String key) {
Entry entry = (Entry)index_.get(key);
if (entry == null) {
return (null);
} else {
return (entry.type);
}
}
public boolean isConstant(String key) {
Entry entry = (Entry)index_.get(key);
if (entry == null) {
return (false);
} else {
return (entry.constant);
}
}
public void setAttr(String key, String attr, Object value) {
Entry entry = (Entry)index_.get(key);
if (entry == null) {
throw (new IllegalArgumentException("non exist key"));
}
entry.attrs.put(attr, value);
}
public Object getAttr(String key, String attr) {
Entry entry = (Entry)index_.get(key);
if (entry == null) {
return (null);
} else {
return (entry.attrs.get(attr));
}
}
public String getAttrString(String key, String attr) {
return ((String)getAttr(key, attr));
}
public void setLabel(String key, String label)
throws IllegalArgumentException {
Entry entry = (Entry)index_.get(key);
if (entry == null) {
throw (new IllegalArgumentException("non exist key"));
}
entry.attrs.put("label", label);
}
public String getLabel(String key) {
Entry entry = (Entry)index_.get(key);
if (entry == null) {
return (null);
} else {
String label = (String)entry.attrs.get("label");
if (label == null) {
return (entry.key);
} else {
return (label);
}
}
}
public PropertyList makeEditableList() {
PropertyList properties = new PropertyList(this);
int size = properties.entries_.size();
for (int i = 0;i < size;i++) {
Entry entry = (Entry)properties.entries_.get(i);
entry.constant = false;
}
return (properties);
}
public PropertyList makeImmutableList() {
PropertyList properties = new PropertyList(this);
int size = properties.entries_.size();
for (int i = 0;i < size;i++) {
Entry entry = (Entry)properties.entries_.get(i);
entry.constant = true;
}
return (properties);
}
// Object
public Object clone() {
return (new PropertyList(this));
}
// Object
public String toString() {
StringBuffer buffer = new StringBuffer();
buffer.append(getClass().getName());
buffer.append("[");
int size = entries_.size();
if (size > 0) {
Entry entry;
entry = (Entry)entries_.get(0);
buffer.append(entry.key);
buffer.append('=');
buffer.append(entry.value.toString());
for (int i = 1;i < size;i++) {
entry = (Entry)entries_.get(i);
buffer.append(',');
buffer.append(entry.key);
buffer.append('=');
buffer.append(
entry.value != null ? entry.value.toString() : "null"
);
}
}
buffer.append("]");
return (buffer.toString());
}
// on debug
/**
* Makes a <code>PropertyList</code> from the object properties using
* JavaBeans property facility.
* <br>
* All properties in the list are editable.
*/
public static PropertyList makePropertyList(Object obj) {
try {
BeanInfo info = Introspector.getBeanInfo(obj.getClass());
PropertyDescriptor[] properties = info.getPropertyDescriptors();
PropertyList list = new PropertyList();
Object[] args = new Object[0];
for (int i = 0;i < properties.length;i++) {
PropertyDescriptor desc = properties[i];
list.put(
desc.getName(),
desc.getReadMethod().invoke(obj, args),
desc.getPropertyType(),
true
);
}
return (list);
} catch (IntrospectionException e) {
return (new PropertyList());
} catch (IllegalAccessException e) {
return (new PropertyList());
} catch (InvocationTargetException e) {
return (new PropertyList());
}
}
// on debug
/**
* Makes a <code>PropertyList</code> from the object properties using
* JavaBeans property facility.
* <br>
* Only properties which has a write method are editable.
*/
public static PropertyList makePropertyListForEdit(Object obj) {
try {
BeanInfo info = Introspector.getBeanInfo(obj.getClass());
PropertyDescriptor[] properties = info.getPropertyDescriptors();
PropertyList list = new PropertyList();
Object[] args = new Object[0];
for (int i = 0;i < properties.length;i++) {
PropertyDescriptor desc = properties[i];
list.put(
desc.getName(),
desc.getReadMethod().invoke(obj, args),
desc.getPropertyType(),
desc.getWriteMethod() == null
);
}
return (list);
} catch (IntrospectionException e) {
return (new PropertyList());
} catch (IllegalAccessException e) {
return (new PropertyList());
} catch (InvocationTargetException e) {
return (new PropertyList());
}
}
static class Entry {
String key;
Object value;
Class type;
boolean constant;
Domain domain;
Map attrs = new HashMap(); // Map<String, Object>
public Entry(String key, Object value, Class type, boolean constant) {
this.key = key;
this.value = value;
this.type = type;
this.constant = constant;
this.domain = null;
}
public Entry(
String key,
Object value,
Class type,
boolean constant,
Domain domain
) {
this.key = key;
this.value = value;
this.type = type;
this.constant = constant;
this.domain = domain;
}
public void putAttr(String key, Object value) {
attrs.put(key, value);
}
public Object getAttr(String key) {
return (attrs.get(key));
}
}
}