| /* |
| * Copyright 2005 The Apache Software Foundation. |
| * |
| * 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.apache.jackrabbit.server.io; |
| |
| import org.apache.log4j.Logger; |
| import org.apache.jackrabbit.webdav.io.InputContext; |
| |
| import javax.jcr.Item; |
| import java.io.InputStream; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.File; |
| import java.util.Date; |
| |
| /** |
| * <code>ImportContextImpl</code>... |
| */ |
| public class ImportContextImpl implements ImportContext { |
| |
| private static Logger log = Logger.getLogger(ImportContextImpl.class); |
| |
| private final IOListener ioListener; |
| private final Item importRoot; |
| private final String systemId; |
| private final File inputFile; |
| |
| private InputContext inputCtx; |
| private boolean completed; |
| |
| /** |
| * Creates a new item import context with the given root item and the |
| * specified <code>InputContext</code>. If the input context provides an |
| * input stream, the stream is written to a temporary file in order to avoid |
| * problems with multiple IOHandlers that try to run the import but fail. |
| * The temporary file is deleted as soon as this context is informed that |
| * the import has been completed and it will not be used any more. |
| * |
| * @param importRoot the import root node |
| * @param inputCtx wrapped by this <code>ImportContext</code> |
| */ |
| public ImportContextImpl(Item importRoot, String systemId, InputContext inputCtx) throws IOException { |
| this(importRoot, systemId, (inputCtx != null) ? inputCtx.getInputStream() : null, null); |
| this.inputCtx = inputCtx; |
| } |
| |
| /** |
| * Creates a new item import context. The specified InputStream is written |
| * to a temporary file in order to avoid problems with multiple IOHandlers |
| * that try to run the import but fail. The temporary file is deleted as soon |
| * as this context is informed that the import has been completed and it |
| * will not be used any more. |
| * |
| * @param importRoot |
| * @param systemId |
| * @param in |
| * @param ioListener |
| * @throws IOException |
| * @see ImportContext#informCompleted(boolean) |
| */ |
| public ImportContextImpl(Item importRoot, String systemId, InputStream in, IOListener ioListener) throws IOException { |
| this.importRoot = importRoot; |
| this.systemId = systemId; |
| this.inputFile = IOUtil.getTempFile(in); |
| this.ioListener = (ioListener != null) ? ioListener : new DefaultIOListener(log); |
| } |
| |
| /** |
| * @see ImportContext#getIOListener() |
| */ |
| public IOListener getIOListener() { |
| return ioListener; |
| } |
| |
| /** |
| * @see ImportContext#getImportRoot() |
| */ |
| public Item getImportRoot() { |
| return importRoot; |
| } |
| |
| /** |
| * @see ImportContext#hasStream() |
| */ |
| public boolean hasStream() { |
| return inputFile != null; |
| } |
| |
| /** |
| * Returns a new <code>InputStream</code> to the temporary file created |
| * during instanciation or <code>null</code>, if this context does not |
| * provide a stream. |
| * |
| * @see ImportContext#getInputStream() |
| * @see #hasStream() |
| */ |
| public InputStream getInputStream() { |
| checkCompleted(); |
| InputStream in = null; |
| if (inputFile != null) { |
| try { |
| in = new FileInputStream(inputFile); |
| } catch (IOException e) { |
| // unexpected error... ignore and return null |
| } |
| } |
| return in; |
| } |
| |
| /** |
| * @see ImportContext#getSystemId() |
| */ |
| public String getSystemId() { |
| return systemId; |
| } |
| |
| /** |
| * @see ImportContext#getModificationTime() |
| */ |
| public long getModificationTime() { |
| return (inputCtx != null) ? inputCtx.getModificationTime() : new Date().getTime(); |
| } |
| |
| /** |
| * @see ImportContext#getContentLanguage() |
| */ |
| public String getContentLanguage() { |
| return (inputCtx != null) ? inputCtx.getContentLanguage() : null; |
| } |
| |
| /** |
| * @see ImportContext#getContentLength() |
| */ |
| public long getContentLength() { |
| return (inputCtx != null) ? inputCtx.getContentLength() : IOUtil.UNDEFINED_LENGTH; |
| } |
| |
| /** |
| * @return the content type present on the <code>InputContext</code> or |
| * <code>null</code> |
| * @see InputContext#getContentType() |
| */ |
| private String getContentType() { |
| return (inputCtx != null) ? inputCtx.getContentType() : null; |
| } |
| |
| /** |
| * @see ImportContext#getMimeType() |
| */ |
| public String getMimeType() { |
| String contentType = getContentType(); |
| String mimeType = null; |
| if (contentType != null) { |
| mimeType = IOUtil.getMimeType(contentType); |
| } else if (getSystemId() != null) { |
| mimeType = IOUtil.MIME_RESOLVER.getMimeType(getSystemId()); |
| } |
| return mimeType; |
| } |
| |
| /** |
| * @see ImportContext#getEncoding() |
| */ |
| public String getEncoding() { |
| String contentType = getContentType(); |
| return (contentType != null) ? IOUtil.getEncoding(contentType) : null; |
| } |
| |
| /** |
| * @see ImportContext#getProperty(Object) |
| */ |
| public Object getProperty(Object propertyName) { |
| return (inputCtx != null) ? inputCtx.getProperty(propertyName.toString()) : null; |
| } |
| |
| /** |
| * @see ImportContext#informCompleted(boolean) |
| */ |
| public void informCompleted(boolean success) { |
| checkCompleted(); |
| completed = true; |
| if (inputFile != null) { |
| inputFile.delete(); |
| } |
| } |
| |
| /** |
| * @see ImportContext#isCompleted() |
| */ |
| public boolean isCompleted() { |
| return completed; |
| } |
| |
| /** |
| * @throws IllegalStateException if the context is already completed. |
| * @see #isCompleted() |
| * @see #informCompleted(boolean) |
| */ |
| private void checkCompleted() { |
| if (completed) { |
| throw new IllegalStateException("ImportContext has already been consumed."); |
| } |
| } |
| } |