/* Copyright (c) 2001 - 2009 TOPP - www.openplans.org. All rights reserved.
* This code is licensed under the GPL 2.0 license, available at the root
* application directory.
*/
package org.geoserver.web.data.store;
import java.io.File;
import java.io.IOException;
import java.io.Serializable;
import java.net.URL;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import org.apache.wicket.Component;
import org.apache.wicket.behavior.SimpleAttributeModifier;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.list.ListItem;
import org.apache.wicket.markup.html.list.ListView;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.PropertyModel;
import org.apache.wicket.model.ResourceModel;
import org.geoserver.catalog.Catalog;
import org.geoserver.catalog.DataStoreInfo;
import org.geoserver.catalog.NamespaceInfo;
import org.geoserver.catalog.ResourcePool;
import org.geoserver.web.GeoServerApplication;
import org.geoserver.web.data.resource.DataStorePanelInfo;
import org.geoserver.web.data.store.panel.CheckBoxParamPanel;
import org.geoserver.web.data.store.panel.LabelParamPanel;
import org.geoserver.web.data.store.panel.NamespacePanel;
import org.geoserver.web.data.store.panel.PasswordParamPanel;
import org.geoserver.web.data.store.panel.TextParamPanel;
import org.geoserver.web.util.MapModel;
import org.geoserver.web.wicket.FileExistsValidator;
import org.geotools.data.DataAccessFactory;
import org.geotools.data.DataAccessFactory.Param;
/**
* A default {@link StoreEditPanel} contribution for the {@link DataStorePanelInfo} extension point
* to work on any {@link DataStoreInfo}s.
* <p>
* This default store parameters panel contributes to the store edit form
* {@link DataStorePanelInfo#getComponentClass() extension point} by providing a dynamically and
* introspectively generated list of form input fields based on the {@link DataAccessFactory}
* parameters for the given {@code DataStoreInfo}.
* </p>
*
* @author Gabriel Roldan
*
* @see Param
* @see ResourcePool#getDataStoreFactory(DataStoreInfo)
* @see DataStorePanelInfo
* @see AbstractDataAccessPage
* @see TextParamPanel
* @see CheckBoxParamPanel
* @see LabelParamPanel
* @see NamespacePanel
*/
@SuppressWarnings("serial")
public class DefaultDataStoreEditPanel extends StoreEditPanel {
private static final long serialVersionUID = -1969433619372747193L;
/**
* Creates a new parameters panel with a list of input fields matching the {@link Param}s for
* the factory related to the {@code DataStoreInfo} that's the model of the provided {@code
* Form}.
*
* @param componentId
* the id for this component instance
* @param storeEditForm
* the form being build by the calling class, whose model is the
* {@link DataStoreInfo} being edited
*/
public DefaultDataStoreEditPanel(final String componentId, final Form storeEditForm) {
super(componentId, storeEditForm);
final IModel model = storeEditForm.getModel();
final DataStoreInfo info = (DataStoreInfo) model.getObject();
final Catalog catalog = getCatalog();
final ResourcePool resourcePool = catalog.getResourcePool();
DataAccessFactory dsFactory;
try {
dsFactory = resourcePool.getDataStoreFactory(info);
} catch (IOException e) {
throw new RuntimeException(e);
}
final Map<String, ParamInfo> paramsMetadata = new LinkedHashMap<String, ParamInfo>();
{
final boolean isNew = null == info.getId();
final Param[] dsParams = dsFactory.getParametersInfo();
for (Param p : dsParams) {
ParamInfo paramInfo = new ParamInfo(p);
paramsMetadata.put(p.key, paramInfo);
if (isNew) {
// set default value
Serializable defValue;
if ("namespace".equals(paramInfo.getName())) {
defValue = catalog.getDefaultNamespace().getURI();
} else if (URL.class == paramInfo.getBinding()) {
defValue = "file:data/example.extension";
} else {
defValue = paramInfo.getValue();
}
info.getConnectionParameters().put(paramInfo.getName(), defValue);
}
}
}
final List<String> keys = new ArrayList<String>(paramsMetadata.keySet());
final IModel paramsModel = new PropertyModel(model, "connectionParameters");
ListView paramsList = new ListView("parameters", keys) {
private static final long serialVersionUID = 1L;
@Override
protected void populateItem(ListItem item) {
String paramName = item.getModelObjectAsString();
ParamInfo paramMetadata = paramsMetadata.get(paramName);
Component inputComponent;
inputComponent = getInputComponent("parameterPanel", paramsModel, paramMetadata);
String description = paramMetadata.getTitle();
if (description != null) {
inputComponent.add(new SimpleAttributeModifier("title", description));
}
item.add(inputComponent);
}
};
// needed for form components not to loose state
paramsList.setReuseItems(true);
add(paramsList);
}
/**
* Creates a form input component for the given datastore param based on its type and metadata
* properties.
*
* @param paramMetadata
* @return
*/
private Panel getInputComponent(final String componentId, final IModel paramsModel,
final ParamInfo paramMetadata) {
final String paramName = paramMetadata.getName();
final String paramLabel = paramMetadata.getName();
final boolean required = paramMetadata.isRequired();
final Class<?> binding = paramMetadata.getBinding();
Panel parameterPanel;
if ("namespace".equals(paramName)) {
IModel namespaceModel = new NamespaceParamModel(paramsModel, paramName);
IModel paramLabelModel = new ResourceModel(paramLabel, paramLabel);
parameterPanel = new NamespacePanel(componentId, namespaceModel, paramLabelModel, true);
} else if (Boolean.class == binding) {
// TODO Add prefix for better i18n?
parameterPanel = new CheckBoxParamPanel(componentId, new MapModel(paramsModel,
paramName), new ResourceModel(paramLabel, paramLabel));
} else if (String.class == binding && paramMetadata.isPassword()) {
parameterPanel = new PasswordParamPanel(componentId, new MapModel(paramsModel,
paramName), new ResourceModel(paramLabel, paramLabel), required);
} else {
IModel model;
if("url".equalsIgnoreCase(paramName)) {
model = new URLModel(paramsModel, paramName);
} else {
model = new MapModel(paramsModel, paramName);
}
TextParamPanel tp = new TextParamPanel(componentId,
model, new ResourceModel(paramLabel, paramLabel), required);
// if it can be a reference to the local filesystem make sure it's valid
if (paramName.equalsIgnoreCase("url")) {
tp.getFormComponent().add(new FileExistsValidator());
}
// make sure the proper value is returned, but don't set it for strings otherwise
// we incur in a wicket bug (the empty string is not converter back to a null)
// GR: it doesn't work for File neither.
// AA: better not mess with files, the converters turn data dir relative to
// absolute and bye bye data dir portability
if (binding != null && !String.class.equals(binding) && !File.class.equals(binding)
&& !URL.class.equals(binding)) {
tp.getFormComponent().setType(binding);
}
parameterPanel = tp;
}
return parameterPanel;
}
private Catalog getCatalog() {
GeoServerApplication application = (GeoServerApplication) getApplication();
return application.getCatalog();
}
/**
* Model to wrap and unwrap a {@link NamespaceInfo} to and from a String for the Datastore's
* "namespace" parameter
*
*/
private final class NamespaceParamModel extends MapModel {
private NamespaceParamModel(IModel model, String expression) {
super(model, expression);
}
@Override
public Object getObject() {
String nsUri = (String) super.getObject();
NamespaceInfo namespaceInfo = getCatalog().getNamespaceByURI(nsUri);
return namespaceInfo;
}
@Override
public void setObject(Object object) {
NamespaceInfo namespaceInfo = (NamespaceInfo) object;
String nsUri = namespaceInfo.getURI();
super.setObject(nsUri);
}
}
/**
* Makes sure the file path for shapefiles do start with file:// otherwise
* stuff like /home/user/file.shp won't be recognized as valid...
* @author aaime
*
*/
private final class URLModel extends MapModel {
private URLModel(IModel model, String expression) {
super(model, expression);
}
@Override
public void setObject(Object object) {
String file = (String) object;
if(!file.startsWith("file://") && !file.startsWith("file:") &&
!file.startsWith("http://"))
file = "file://" + file;
super.setObject(file);
}
}
}