svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.spi / src / main / java / org / gvsig / fmap / dal / resource / spi / MultiResource.java @ 40559
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | 40435 | jjdelcerro | *
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4 | 40559 | jjdelcerro | * Copyright (C) 2007-2013 gvSIG Association.
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5 | *
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6 | 40435 | jjdelcerro | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | 40559 | jjdelcerro | * as published by the Free Software Foundation; either version 3
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9 | 40435 | jjdelcerro | * of the License, or (at your option) any later version.
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10 | 40559 | jjdelcerro | *
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11 | 40435 | jjdelcerro | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | 40559 | jjdelcerro | *
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16 | 40435 | jjdelcerro | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | 40559 | jjdelcerro | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | 40435 | jjdelcerro | * MA 02110-1301, USA.
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20 | 40559 | jjdelcerro | *
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21 | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | 40435 | jjdelcerro | */
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24 | /*
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25 | * AUTHORS (In addition to CIT):
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26 | * 2009 {} {{Task}}
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27 | */
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28 | package org.gvsig.fmap.dal.resource.spi; |
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29 | |||
30 | import java.util.ArrayList; |
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31 | import java.util.List; |
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32 | |||
33 | import org.gvsig.fmap.dal.DALLocator; |
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34 | import org.gvsig.fmap.dal.exception.InitializeException; |
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35 | import org.gvsig.fmap.dal.resource.ResourceParameters; |
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36 | import org.gvsig.fmap.dal.resource.exception.AccessResourceException; |
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37 | import org.gvsig.fmap.dal.resource.exception.PrepareResourceException; |
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38 | import org.gvsig.fmap.dal.resource.exception.ResourceException; |
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39 | import org.gvsig.fmap.dal.resource.exception.ResourceNotifyChangesException; |
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40 | import org.gvsig.fmap.dal.resource.exception.ResourceNotifyCloseException; |
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41 | import org.gvsig.fmap.dal.resource.exception.ResourceNotifyDisposeException; |
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42 | import org.gvsig.fmap.dal.resource.exception.ResourceNotifyOpenException; |
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43 | import org.slf4j.Logger; |
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44 | import org.slf4j.LoggerFactory; |
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45 | |||
46 | /**
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47 | * Resource implementation which is able to show an unique interface to a group
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48 | * of Resources.
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49 | *
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50 | * @author 2009- <a href="cordinyana@gvsig.org">C?sar Ordi?ana</a> - gvSIG team
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51 | */
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52 | public class MultiResource extends AbstractResource { |
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53 | |||
54 | public static final String TYPE_NAME = "multi"; |
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55 | |||
56 | public static final String DESCRIPTION = "Group of multiple resources"; |
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57 | |||
58 | private static final Logger LOG = |
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59 | LoggerFactory.getLogger(MultiResource.class); |
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60 | |||
61 | private List resources = new ArrayList(); |
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62 | |||
63 | // Initially, the first one
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64 | private int defaultResourcePos = 0; |
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65 | |||
66 | /**
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67 | * Creates a new {@link MultiResource} from the given parameters.
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68 | *
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69 | * @param parameters
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70 | * to create the resource from
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71 | * @throws InitializeException
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72 | * if there is an error creating the resource
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73 | */
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74 | public MultiResource(MultiResourceParameters parameters)
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75 | throws InitializeException {
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76 | super(parameters);
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77 | } |
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78 | |||
79 | private List getResources() { |
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80 | return resources;
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81 | } |
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82 | |||
83 | /**
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84 | * Adds a new {@link ResourceProvider} to the list of Resources managed by
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85 | * this group.
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86 | *
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87 | * @param parameters
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88 | * to create the resource from
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89 | * @param defaultResource
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90 | * if the added resource is to be used as the multi resource
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91 | * default one
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92 | * @throws InitializeException
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93 | * if there is an error adding the resource
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94 | */
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95 | public void addResource(ResourceParameters parameters, |
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96 | boolean defaultResource) throws InitializeException { |
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97 | ResourceProvider resourceProvider = |
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98 | ((ResourceManagerProviderServices) DALLocator.getResourceManager()).createResource(parameters); |
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99 | resources.add(resourceProvider); |
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100 | if (defaultResource) {
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101 | defaultResourcePos = resources.size() - 1;
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102 | } |
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103 | } |
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104 | |||
105 | /**
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106 | * Adds a new {@link ResourceProvider} to the list of Resources managed by
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107 | * this group.
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108 | *
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109 | * @param name
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110 | * of the resource to add
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111 | * @param params
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112 | * parameters to create the resource with
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113 | * @param defaultResource
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114 | * if the added resource is to be used as the multi resource
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115 | * default one
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116 | * @throws InitializeException
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117 | * if there is an error adding the resource
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118 | */
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119 | public void addResource(String name, Object[] params, |
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120 | boolean defaultResource) throws InitializeException { |
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121 | ResourceProvider resourceProvider = |
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122 | ((ResourceManagerProviderServices) DALLocator.getResourceManager()).createResource( |
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123 | name, params); |
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124 | resources.add(resourceProvider); |
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125 | if (defaultResource) {
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126 | defaultResourcePos = resources.size() - 1;
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127 | } |
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128 | } |
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129 | |||
130 | public boolean isThis(ResourceParameters parameters) |
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131 | throws ResourceException {
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132 | if (parameters instanceof MultiResourceParameters) { |
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133 | MultiResourceParameters multiParams = |
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134 | (MultiResourceParameters) parameters; |
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135 | return multiParams.getName() != null |
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136 | && multiParams.getName().equals( |
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137 | getMultiResourceParameters().getName()); |
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138 | } |
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139 | |||
140 | return false; |
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141 | } |
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142 | |||
143 | public void notifyChanges() throws ResourceNotifyChangesException { |
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144 | List resources = getResources();
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145 | for (int i = 0; i < resources.size(); i++) { |
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146 | ((ResourceProvider) getResources().get(i)).notifyChanges(); |
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147 | } |
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148 | } |
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149 | |||
150 | public void notifyClose() throws ResourceNotifyCloseException { |
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151 | List resources = getResources();
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152 | for (int i = 0; i < resources.size(); i++) { |
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153 | ((ResourceProvider) getResources().get(i)).notifyClose(); |
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154 | } |
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155 | } |
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156 | |||
157 | public void notifyDispose() throws ResourceNotifyDisposeException { |
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158 | List resources = getResources();
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159 | for (int i = 0; i < resources.size(); i++) { |
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160 | ((ResourceProvider) getResources().get(i)).notifyDispose(); |
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161 | } |
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162 | } |
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163 | |||
164 | public void notifyOpen() throws ResourceNotifyOpenException { |
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165 | List resources = getResources();
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166 | for (int i = 0; i < resources.size(); i++) { |
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167 | ((ResourceProvider) getResources().get(i)).notifyOpen(); |
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168 | } |
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169 | } |
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170 | |||
171 | public void prepare() throws PrepareResourceException { |
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172 | List resources = getResources();
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173 | for (int i = 0; i < resources.size(); i++) { |
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174 | ((ResourceProvider) getResources().get(i)).prepare(); |
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175 | } |
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176 | } |
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177 | |||
178 | public void closeRequest() throws ResourceException { |
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179 | List resources = getResources();
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180 | for (int i = 0; i < resources.size(); i++) { |
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181 | ((ResourceProvider) getResources().get(i)).closeRequest(); |
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182 | } |
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183 | } |
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184 | |||
185 | public Object get() throws AccessResourceException { |
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186 | ResourceProvider defaultResource = getDefaultResource(); |
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187 | if (defaultResource == null) { |
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188 | return null; |
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189 | } else {
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190 | return defaultResource.get();
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191 | } |
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192 | } |
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193 | |||
194 | public Object getData() { |
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195 | ResourceProvider defaultResource = getDefaultResource(); |
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196 | if (defaultResource == null) { |
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197 | return null; |
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198 | } else {
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199 | return defaultResource.getData();
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200 | } |
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201 | } |
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202 | |||
203 | private MultiResourceParameters getMultiResourceParameters() {
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204 | return (MultiResourceParameters) getParameters();
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205 | } |
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206 | |||
207 | public String getName() throws AccessResourceException { |
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208 | StringBuffer buffer =
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209 | new StringBuffer().append("MultiResource ").append( |
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210 | getMultiResourceParameters().getName()).append(":: ");
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211 | List resources = getResources();
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212 | for (int i = 0; i < resources.size(); i++) { |
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213 | buffer.append(((ResourceProvider) resources.get(i)).getName()); |
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214 | if (defaultResourcePos == i) {
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215 | buffer.append(" (default)");
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216 | } |
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217 | if (i < resources.size() - 1) { |
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218 | buffer.append(", ");
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219 | } |
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220 | } |
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221 | return buffer.toString();
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222 | } |
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223 | |||
224 | public String toString() { |
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225 | try {
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226 | return getName();
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227 | } catch (AccessResourceException e) {
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228 | LOG.error("Error getting the resource name", e);
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229 | } |
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230 | return super.toString(); |
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231 | } |
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232 | |||
233 | private ResourceProvider getDefaultResource() {
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234 | if (getResources().size() > 0) { |
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235 | return (ResourceProvider) getResources().get(defaultResourcePos);
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236 | } else {
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237 | return null; |
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238 | } |
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239 | } |
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240 | |||
241 | public void setData(Object data) { |
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242 | ResourceProvider defaultResource = getDefaultResource(); |
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243 | if (defaultResource != null) { |
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244 | defaultResource.setData(data); |
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245 | } |
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246 | } |
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247 | } |