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- /*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You 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.
- */
-
- /* $Id$ */
-
- package org.apache.fop.render.intermediate;
-
- import java.io.BufferedOutputStream;
- import java.io.IOException;
- import java.io.OutputStream;
- import java.net.URI;
-
- import javax.xml.transform.Result;
- import javax.xml.transform.stream.StreamResult;
-
- import org.apache.commons.io.IOUtils;
-
- import org.apache.fop.fonts.FontCollection;
- import org.apache.fop.fonts.FontEventAdapter;
- import org.apache.fop.fonts.FontInfo;
- import org.apache.fop.fonts.FontManager;
- import org.apache.fop.fonts.base14.Base14FontCollection;
-
- /**
- * Abstract base class for binary-writing {@link IFDocumentHandler} implementations.
- */
- public abstract class AbstractBinaryWritingIFDocumentHandler extends AbstractIFDocumentHandler {
-
- /** The output stream to write the document to */
- protected OutputStream outputStream;
-
- private boolean ownOutputStream;
-
- /** Font configuration */
- protected FontInfo fontInfo;
-
- public AbstractBinaryWritingIFDocumentHandler(IFContext ifContext) {
- super(ifContext);
- }
-
- /** {@inheritDoc} */
- public void setResult(Result result) throws IFException {
- if (result instanceof StreamResult) {
- StreamResult streamResult = (StreamResult) result;
- OutputStream out = streamResult.getOutputStream();
- if (out == null) {
- if (streamResult.getWriter() != null) {
- throw new IllegalArgumentException(
- "FOP cannot use a Writer. Please supply an OutputStream!");
- }
- try {
- URI resultURI = URI.create(streamResult.getSystemId());
- out = new BufferedOutputStream(getUserAgent().getResourceResolver().getOutputStream(resultURI));
- } catch (IOException ioe) {
- throw new IFException("I/O error while opening output stream" , ioe);
- }
- this.ownOutputStream = true;
- }
- this.outputStream = out;
- } else {
- throw new UnsupportedOperationException(
- "Unsupported Result subclass: " + result.getClass().getName());
- }
- }
-
- /** {@inheritDoc} */
- public FontInfo getFontInfo() {
- return this.fontInfo;
- }
-
- /** {@inheritDoc} */
- public void setFontInfo(FontInfo fontInfo) {
- this.fontInfo = fontInfo;
- }
-
- /** {@inheritDoc} */
- public void setDefaultFontInfo(FontInfo fontInfo) {
- FontManager fontManager = getUserAgent().getFontManager();
- FontCollection[] fontCollections = new FontCollection[] {
- new Base14FontCollection(fontManager.isBase14KerningEnabled())
- };
-
- FontInfo fi = (fontInfo != null ? fontInfo : new FontInfo());
- fi.setEventListener(new FontEventAdapter(getUserAgent().getEventBroadcaster()));
- fontManager.setup(fi, fontCollections);
- setFontInfo(fi);
- }
-
- /** {@inheritDoc} */
- public void startDocument() throws IFException {
- super.startDocument();
- if (this.outputStream == null) {
- throw new IllegalStateException("OutputStream hasn't been set through setResult()");
- }
- }
-
- /** {@inheritDoc} */
- public void endDocument() throws IFException {
- if (this.ownOutputStream) {
- IOUtils.closeQuietly(this.outputStream);
- this.outputStream = null;
- }
- }
-
- }
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