001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/framework/util/ParameterList.java $
002 /*----------------------------------------------------------------------------
003 This file is part of deegree, http://deegree.org/
004 Copyright (C) 2001-2009 by:
005 Department of Geography, University of Bonn
006 and
007 lat/lon GmbH
008
009 This library is free software; you can redistribute it and/or modify it under
010 the terms of the GNU Lesser General Public License as published by the Free
011 Software Foundation; either version 2.1 of the License, or (at your option)
012 any later version.
013 This library is distributed in the hope that it will be useful, but WITHOUT
014 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
015 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
016 details.
017 You should have received a copy of the GNU Lesser General Public License
018 along with this library; if not, write to the Free Software Foundation, Inc.,
019 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020
021 Contact information:
022
023 lat/lon GmbH
024 Aennchenstr. 19, 53177 Bonn
025 Germany
026 http://lat-lon.de/
027
028 Department of Geography, University of Bonn
029 Prof. Dr. Klaus Greve
030 Postfach 1147, 53001 Bonn
031 Germany
032 http://www.geographie.uni-bonn.de/deegree/
033
034 e-mail: info@deegree.org
035 ----------------------------------------------------------------------------*/
036
037 package org.deegree.framework.util;
038
039 import java.util.ArrayList;
040 import java.util.HashMap;
041
042 /**
043 * The interface defines the access to a list of paramters that can be used as submitted parameters to methods that may
044 * receive an variable list of parameters.
045 *
046 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
047 * @author last edited by: $Author: mschneider $
048 *
049 * @version $Revision: 18195 $ $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
050 */
051 final public class ParameterList {
052
053 private HashMap<String, Parameter> params = new HashMap<String, Parameter>();
054
055 private ArrayList<String> keys = new ArrayList<String>( 100 );
056
057 /**
058 * returns the parameter that matches the submitted name. if no parameter can be found <tt>null</tt> will be
059 * returned.
060 *
061 * @param name
062 * @return name parameter
063 */
064 public Parameter getParameter( String name ) {
065 return params.get( name );
066 }
067
068 /**
069 * adds a new <tt>Parameter</tt> to the list
070 *
071 * @param name
072 * @param value
073 *
074 */
075 public void addParameter( String name, Object value ) {
076 Parameter p = new Parameter( name, value );
077 addParameter( p );
078 }
079
080 /**
081 * adds a new <tt>Parameter</tt> to the list
082 *
083 * @param param
084 */
085 public void addParameter( Parameter param ) {
086 params.put( param.getName(), param );
087 keys.add( param.getName() );
088 }
089
090 /**
091 * returns all <tt>Parameter</tt>s contained within the list as array. it is guarenteered that the arrays isn't
092 * <tt>null</tt>
093 *
094 * @return returns an array with all Parameters from the list.
095 */
096 public Parameter[] getParameters() {
097 Parameter[] p = new Parameter[keys.size()];
098 int i = 0;
099 for ( String key : keys ) {
100 p[i++] = params.get( key );
101 }
102 return p;
103 }
104
105 /**
106 * returns an array of all <tt>Parameter</tt>s names. it is guarenteered that the arrays isn't <tt>null</tt>
107 *
108 * @return parameter names
109 */
110 public String[] getParameterNames() {
111 String[] s = new String[keys.size()];
112 return keys.toArray( s );
113 }
114
115 /**
116 * returns an array of all <tt>Parameter</tt>s values. it is guarenteered that the arrays isn't <tt>null</tt>
117 *
118 * @return parameter values
119 */
120 public Object[] getParameterValues() {
121 Object[] o = new Object[keys.size()];
122 for ( int i = 0; i < o.length; i++ ) {
123 Parameter p = params.get( keys.get( i ) );
124 o[i] = p.getValue();
125 }
126 return o;
127 }
128
129 /**
130 * removes a parameter from the list
131 *
132 * @param name
133 * name of the parameter
134 * @return nemd parameter
135 */
136 public Parameter removeParameter( String name ) {
137 keys.remove( name );
138 return params.remove( name );
139 }
140
141 /**
142 * @return string representation
143 */
144 @Override
145 public String toString() {
146 String ret = null;
147 ret = "params = " + params + "\n";
148 return ret;
149 }
150
151 }