+/*
+ * Copyright (C) 2007-2012 Mathieu Baudier
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
package org.argeo.eclipse.ui.jcr.utils;
import java.io.InputStream;
import javax.jcr.Node;
+import javax.jcr.Property;
import javax.jcr.RepositoryException;
+import javax.jcr.nodetype.NodeType;
import org.apache.commons.io.IOUtils;
import org.argeo.ArgeoException;
-import org.argeo.eclipse.ui.jcr.browser.RepositoryNode;
-import org.argeo.eclipse.ui.jcr.browser.WorkspaceNode;
import org.argeo.eclipse.ui.specific.FileProvider;
/**
* reliable as long as we have not fixed login & multi repository issues that
* will be addressed in the next version.
*
- * We are also very dependant of the repository architecture for file nodes. We
- * assume the content of the file is stored in a nt:resource child node of the
- * nt:file in the jcr:data property
+ * NOTE: id used here is the real id of the JCR Node, not the JCR Path
*
- * @author bsinou
+ * Relies on common approach for JCR file handling implementation.
*
*/
public class JcrFileProvider implements FileProvider {
- private RepositoryNode repositoryNode;
+ // private Object[] rootNodes;
+ private Node refNode;
/**
- * Must be set in order for the provider to be able to search the repository
+ * Must be set in order for the provider to be able to get current session
+ * and thus have the ability to get the file node corresponding to a given
+ * file ID
+ *
+ * FIXME : this introduces some concurrences ISSUES.
*
* @param repositoryNode
*/
- public void setRepositoryNode(RepositoryNode repositoryNode) {
- this.repositoryNode = repositoryNode;
+ public void setReferenceNode(Node refNode) {
+ this.refNode = refNode;
}
+ /**
+ * Must be set in order for the provider to be able to search the repository
+ * Provided object might be either JCR Nodes or UI RepositoryNode for the
+ * time being.
+ *
+ * @param repositoryNode
+ */
+ // public void setRootNodes(Object[] rootNodes) {
+ // List<Object> tmpNodes = new ArrayList<Object>();
+ // for (int i = 0; i < rootNodes.length; i++) {
+ // Object obj = rootNodes[i];
+ // if (obj instanceof Node) {
+ // tmpNodes.add(obj);
+ // } else if (obj instanceof RepositoryRegister) {
+ // RepositoryRegister repositoryRegister = (RepositoryRegister) obj;
+ // Map<String, Repository> repositories = repositoryRegister
+ // .getRepositories();
+ // for (String name : repositories.keySet()) {
+ // // tmpNodes.add(new RepositoryNode(name, repositories
+ // // .get(name)));
+ // }
+ //
+ // }
+ // }
+ // this.rootNodes = tmpNodes.toArray();
+ // }
+
public byte[] getByteArrayFileFromId(String fileId) {
+ InputStream fis = null;
+ byte[] ba = null;
+ Node child = getFileNodeFromId(fileId);
try {
- Object[] nodes = repositoryNode.getChildren();
-
- repos: for (int i = 0; i < nodes.length; i++) {
- WorkspaceNode wNode = (WorkspaceNode) nodes[i];
- Node node = null;
- node = wNode.getSession().getNodeByIdentifier(fileId);
-
- if (node == null)
- continue repos;
-
- if (!node.isNodeType("nt:file"))
- throw new ArgeoException(
- "Cannot open file children Node that are not of 'nt:resource' type.");
-
- Node child = node.getNodes().nextNode();
- if (!child.isNodeType("nt:resource"))
- throw new ArgeoException(
- "Cannot open file children Node that are not of 'nt:resource' type.");
-
- InputStream fis = null;
- byte[] ba = null;
- try {
- fis = (InputStream) child.getProperty("jcr:data")
- .getBinary().getStream();
- ba = IOUtils.toByteArray(fis);
-
- } catch (Exception e) {
- throw new ArgeoException("Stream error while opening file",
- e);
- } finally {
- IOUtils.closeQuietly(fis);
- }
- if (ba != null)
- return ba;
- }
+ fis = (InputStream) child.getProperty(Property.JCR_DATA)
+ .getBinary().getStream();
+ ba = IOUtils.toByteArray(fis);
+
+ } catch (Exception e) {
+ throw new ArgeoException("Stream error while opening file", e);
+ } finally {
+ IOUtils.closeQuietly(fis);
+ }
+ return ba;
+ }
+ public InputStream getInputStreamFromFileId(String fileId) {
+ try {
+ InputStream fis = null;
+
+ Node child = getFileNodeFromId(fileId);
+ fis = (InputStream) child.getProperty(Property.JCR_DATA)
+ .getBinary().getStream();
+ return fis;
} catch (RepositoryException re) {
- throw new ArgeoException("RepositoryException while reading file ",
- re);
+ throw new ArgeoException("Cannot get stream from file node for Id "
+ + fileId, re);
}
+ }
+
+ /**
+ * Throws an exception if the node is not found in the current repository (a
+ * bit like a FileNotFoundException)
+ *
+ * @param fileId
+ * @return Returns the child node of the nt:file node. It is the child node
+ * that have the jcr:data property where actual file is stored.
+ * never null
+ */
+ private Node getFileNodeFromId(String fileId) {
+ try {
+ Node result = refNode.getSession().getNodeByIdentifier(fileId);
+
+ // rootNodes: for (int j = 0; j < rootNodes.length; j++) {
+ // // in case we have a classic JCR Node
+ // if (rootNodes[j] instanceof Node) {
+ // Node curNode = (Node) rootNodes[j];
+ // if (result != null)
+ // break rootNodes;
+ // } // Case of a repository Node
+ // else if (rootNodes[j] instanceof RepositoryNode) {
+ // Object[] nodes = ((RepositoryNode) rootNodes[j])
+ // .getChildren();
+ // for (int i = 0; i < nodes.length; i++) {
+ // Node node = (Node) nodes[i];
+ // result = node.getSession().getNodeByIdentifier(fileId);
+ // if (result != null)
+ // break rootNodes;
+ // }
+ // }
+ // }
+
+ // Sanity checks
+ if (result == null)
+ throw new ArgeoException("File node not found for ID" + fileId);
+
+ // Ensure that the node have the correct type.
+ if (!result.isNodeType(NodeType.NT_FILE))
+ throw new ArgeoException(
+ "Cannot open file children Node that are not of '"
+ + NodeType.NT_RESOURCE + "' type.");
+
+ // Get the usefull part of the Node
+ Node child = result.getNodes().nextNode();
+ if (child == null || !child.isNodeType(NodeType.NT_RESOURCE))
+ throw new ArgeoException(
+ "ERROR: IN the current implemented model, '"
+ + NodeType.NT_FILE
+ + "' file node must have one and only one child of the nt:ressource, where actual data is stored");
+ return child;
- throw new ArgeoException("File not found for ID " + fileId);
+ } catch (RepositoryException re) {
+ throw new ArgeoException("Erreur while getting file node of ID "
+ + fileId, re);
+ }
}
}
projects / lgpl / argeo-commons.git / blobdiff