fujaba/NetworkParser

package de.uniks.networkparser;

/*
The MIT License

Copyright (c) 2010-2016 Stefan Lindel https://www.github.com/fujaba/NetworkParser/

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;

import de.uniks.networkparser.interfaces.SendableEntity;
import de.uniks.networkparser.interfaces.SendableEntityCreatorIndexId;
import de.uniks.networkparser.json.JsonObject;
import de.uniks.networkparser.json.JsonTokener;
import de.uniks.networkparser.list.SimpleEntity;
import de.uniks.networkparser.list.SimpleKeyValueList;
import de.uniks.networkparser.list.SimpleList;

public class SimpleObject implements SendableEntityCreatorIndexId, SendableEntity {
    protected String className;
    protected String id;

    /* SimpleObject Creator Properties */
    private String[] properties;
    private SimpleList<String> baseElements = new SimpleList<String>();
    private boolean dirty = false;

    protected PropertyChangeSupport propertyChangeSupport;

    private SimpleKeyValueList<String, Object> values = new SimpleKeyValueList<String, Object>();

    public String getClassName() {
        return className;
    }

    protected void addBaseElements(String... elements) {
        if (elements == null) {
            return;
        }
        for (String item : elements) {
            if (this.baseElements.add(item)) {
                this.dirty = true;
            }
        }
    }

    public boolean setClassName(String value) {
        if (value != this.className) {
            this.className = value;
            return true;
        }
        return false;
    }

    public String getId() {
        return id;
    }

    public boolean setId(String value) {
        if (value != this.id) {
            this.id = value;
            return true;
        }
        return false;
    }

    public Object getValue(String key) {
        if (IdMap.ID.equals(key)) {
            return this.getId();
        } else if (IdMap.CLASS.equals(key)) {
            return this.getClassName();
        }
        return values.get(key);
    }

    public Object getValue() {
        if (values.size() == 1) {
            return values.getValueByIndex(0);
        }
        return null;
    }

    public boolean setValue(String key, Object value) {
        if (key == null) {
            return false;
        }
        key = key.trim();
        boolean checked = false;
        Object oldValue = null;
        if (value instanceof String) {
            if (IdMap.ID.equals(key)) {
                checked = true;
                oldValue = this.getId();
                this.setId((String) value);
            } else if (IdMap.CLASS.equals(key)) {
                oldValue = this.getClassName();
                checked = true;
                this.setClassName((String) value);
            }
        }
        if (checked == false) {
            int pos = this.values.indexOf(key);

            if (pos < 0) {
                oldValue = null;
                if (this.values.add(key, value)) {
                    this.baseElements.add(key);
                    this.dirty = true;
                }
            } else {
                oldValue = this.values.setValue(pos, value);
            }
        }
        return firePropertyChange(key, oldValue, value);
    }

    public boolean firePropertyChange(String propertyName, Object oldValue, Object newValue) {
        if (propertyChangeSupport != null) {
            if (isChanged(oldValue, newValue)) {
                propertyChangeSupport.firePropertyChange(propertyName, oldValue, newValue);
                return true;
            }
        }
        return false;
    }

    public boolean isChanged(Object oldValue, Object newValue) {
        return !(oldValue != null && oldValue.equals(newValue) || oldValue == newValue);
    }

    public Object withoutValue(String key) {
        Object result = this.values.remove(key);
        if (result != null) {
            this.baseElements.remove(key);
            this.dirty = true;
        }
        return result;
    }

    @SuppressWarnings("unchecked")
    public static SimpleObject create(SimpleEntity<String, Object>... values) {
        SimpleObject result = new SimpleObject();
        if (values != null) {
            for (SimpleEntity<String, Object> item : values) {
                if (item != null) {
                    result.setValue(item.getKey(), item.getValue());
                }
            }
        }
        return result;
    }

    public static SimpleObject create(String className, String key, Object value) {
        SimpleObject result = new SimpleObject();
        result.setClassName(className);
        result.setValue(key, value);
        return result;
    }

    public static SimpleObject create(String id, String className, String key, Object value) {
        SimpleObject result = new SimpleObject();
        result.setId(id);
        result.setClassName(className);
        result.setValue(key, value);
        return result;
    }

    public static SimpleObject create(JsonObject json) {
        SimpleObject result = new SimpleObject();
        if (json == null) {
            return result;
        }

        result.setId(json.getString(IdMap.ID));
        Object className = json.get(IdMap.CLASS);
        if (className != null) {
            result.setClassName("" + className);
        }
        Object props = json.get(JsonTokener.PROPS);
        if (props != null && props instanceof JsonObject) {
            JsonObject jsonProps = (JsonObject) props;
            for (int i = 0; i < jsonProps.size(); i++) {
                String key = jsonProps.getKeyByIndex(i);
                Object value = jsonProps.getValueByIndex(i);
                result.setValue(key, value);
            }
        }
        return result;
    }

    @Override
    public String[] getProperties() {
        if (this.dirty) {
            this.properties = this.baseElements.toArray(new String[this.baseElements.size()]);
            this.dirty = false;
        }
        return this.properties;
    }

    @Override
    public Object getValue(Object entity, String attribute) {
        if (entity instanceof SimpleObject) {
            return ((SimpleObject) entity).getValue(attribute);
        }
        return null;
    }

    @Override
    public boolean setValue(Object entity, String attribute, Object value, String type) {
        return setValue(attribute, value);
    }

    @Override
    public Object getSendableInstance(boolean prototyp) {
        return new SimpleObject();
    }

    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append('[');
        if (id != null) {
            sb.append(id);
            if (className != null) {
                sb.append(':');
                sb.append(className);
            }
        } else if (className != null) {
            sb.append(className);
        }
        if (values.size() > 0) {
            sb.append('|');
            for (int i = 0; i < values.size(); i++) {
                String key = values.getKeyByIndex(i);
                Object value = values.getValueByIndex(i);
                if (i > 0) {
                    sb.append(',');
                }
                sb.append(key);
                sb.append('=');
                sb.append(value);

            }
        }
        sb.append(']');
        return sb.toString();
    }

    @Override
    public boolean addPropertyChangeListener(String propertyName, PropertyChangeListener listener) {
        if (this.propertyChangeSupport == null)
            this.propertyChangeSupport = new PropertyChangeSupport(this);
        this.propertyChangeSupport.addPropertyChangeListener(propertyName, listener);
        return true;
    }

    @Override
    public boolean addPropertyChangeListener(PropertyChangeListener listener) {
        if (this.propertyChangeSupport == null)
            this.propertyChangeSupport = new PropertyChangeSupport(this);
        this.propertyChangeSupport.addPropertyChangeListener(listener);
        return true;
    }

    @Override
    public boolean removePropertyChangeListener(PropertyChangeListener listener) {
        if (this.propertyChangeSupport == null)
            this.propertyChangeSupport = new PropertyChangeSupport(this);
        this.propertyChangeSupport.removePropertyChangeListener(listener);
        return true;
    }

    @Override
    public boolean removePropertyChangeListener(String propertyName, PropertyChangeListener listener) {
        if (this.propertyChangeSupport == null)
            this.propertyChangeSupport = new PropertyChangeSupport(this);
        this.propertyChangeSupport.removePropertyChangeListener(propertyName, listener);
        return true;
    }
}