org.sapia.soto.state.ScopeMap.java Source code

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Here is the source code for org.sapia.soto.state.ScopeMap.java

Source

package org.sapia.soto.state;

import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import org.apache.commons.jexl.JexlContext;

/**
 * @author Yanick Duchesne
 *         <dl>
 *         <dt><b>Copyright: </b>
 *         <dd>Copyright &#169; 2002-2003 <a
 *         href="http://www.sapia-oss.org">Sapia Open Source Software </a>. All
 *         Rights Reserved.</dd>
 *         </dt>
 *         <dt><b>License: </b>
 *         <dd>Read the license.txt file of the jar or visit the <a
 *         href="http://www.sapia-oss.org/license.html">license page </a> at the
 *         Sapia OSS web site</dd>
 *         </dt>
 *         </dl>
 */
public class ScopeMap implements java.util.Map, JexlContext {
    private Map _scopes;
    private String[] _scopeNames;

    public ScopeMap(Map scopes, String[] scopeNames) {
        _scopes = scopes;
        _scopeNames = scopeNames;
    }

    /**
     * @see org.apache.commons.jexl.JexlContext#getVars()
     */
    public Map getVars() {
        return this;
    }

    /**
     * @see org.apache.commons.jexl.JexlContext#setVars(java.util.Map)
     */
    public void setVars(Map arg0) {
    }

    /**
     * @see java.util.Map#clear()
     */
    public void clear() {
    }

    /**
     * @see java.util.Map#containsKey(java.lang.Object)
     */
    public boolean containsKey(Object key) {
        Scope sc;

        if (_scopeNames != null) {
            for (int i = 0; i < _scopeNames.length; i++) {
                sc = (Scope) _scopes.get(_scopeNames[i]);

                if (sc != null) {
                    if (sc.getVal(key) != null) {
                        return true;
                    }
                }
            }
        } else {
            for (Iterator iter = _scopes.values().iterator(); iter.hasNext();) {
                sc = (Scope) iter.next();

                if (sc.getVal(key) != null) {
                    return true;
                }
            }
        }

        return false;
    }

    /**
     * @see java.util.Map#containsValue(java.lang.Object)
     */
    public boolean containsValue(Object arg0) {
        return false;
    }

    /**
     * @see java.util.Map#entrySet()
     */
    public Set entrySet() {
        return new HashSet();
    }

    /**
     * @see java.util.Map#get(java.lang.Object)
     */
    public Object get(Object key) {
        Scope sc;
        Object toReturn = null;

        if (_scopeNames != null) {
            for (int i = 0; i < _scopeNames.length; i++) {
                sc = (Scope) _scopes.get(_scopeNames[i]);

                if (sc != null) {
                    if ((toReturn = sc.getVal(key)) != null) {
                        return toReturn;
                    }
                }
            }
        } else {
            for (Iterator iter = _scopes.values().iterator(); iter.hasNext();) {
                sc = (Scope) iter.next();

                if ((toReturn = sc.getVal(key)) != null) {
                    return toReturn;
                }
            }
        }

        return toReturn;
    }

    /**
     * @see java.util.Map#isEmpty()
     */
    public boolean isEmpty() {
        return false;
    }

    /**
     * @see java.util.Map#keySet()
     */
    public Set keySet() {
        return new HashSet();
    }

    /**
     * @see java.util.Map#put(java.lang.Object, java.lang.Object)
     */
    public Object put(Object arg0, Object arg1) {
        throw new UnsupportedOperationException("public Object put(Object arg0, Object arg1)");
    }

    /**
     * @see java.util.Map#putAll(java.util.Map)
     */
    public void putAll(Map arg0) {
        throw new UnsupportedOperationException("public void putAll(Map arg0)");
    }

    /**
     * @see java.util.Map#remove(java.lang.Object)
     */
    public Object remove(Object arg0) {
        throw new UnsupportedOperationException("public Object remove(Object arg0)");
    }

    /**
     * @see java.util.Map#size()
     */
    public int size() {
        return 0;
    }

    /**
     * @see java.util.Map#values()
     */
    public Collection values() {
        return new HashSet();
    }
}