langtools/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/SplitIndexWriter.java
changeset 35426 374342e56a56
parent 33920 bd731341c405
child 40303 96a1226aca18
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/SplitIndexWriter.java	Sat Nov 28 18:52:17 2015 -0800
@@ -0,0 +1,218 @@
+/*
+ * Copyright (c) 1998, 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.javadoc.internal.doclets.formats.html;
+
+import java.io.*;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.ListIterator;
+import java.util.Set;
+import java.util.TreeSet;
+import jdk.javadoc.internal.doclets.formats.html.markup.HtmlStyle;
+import jdk.javadoc.internal.doclets.formats.html.markup.HtmlTag;
+import jdk.javadoc.internal.doclets.formats.html.markup.HtmlTree;
+import jdk.javadoc.internal.doclets.formats.html.markup.StringContent;
+import jdk.javadoc.internal.doclets.toolkit.Content;
+import jdk.javadoc.internal.doclets.toolkit.util.DocPath;
+import jdk.javadoc.internal.doclets.toolkit.util.DocPaths;
+import jdk.javadoc.internal.doclets.toolkit.util.DocletAbortException;
+import jdk.javadoc.internal.doclets.toolkit.util.IndexBuilder;
+
+
+/**
+ * Generate Separate Index Files for all the member names with Indexing in
+ * Unicode Order. This will create "index-files" directory in the current or
+ * destination directory and will generate separate file for each unicode index.
+ *
+ *  <p><b>This is NOT part of any supported API.
+ *  If you write code that depends on this, you do so at your own risk.
+ *  This code and its internal interfaces are subject to change or
+ *  deletion without notice.</b>
+ *
+ * @see java.lang.Character
+ * @author Atul M Dambalkar
+ * @author Bhavesh Patel (Modified)
+ */
+public class SplitIndexWriter extends AbstractIndexWriter {
+
+    /**
+     * Previous unicode character index in the built index.
+     */
+    protected int prev;
+
+    /**
+     * Next unicode character in the built index.
+     */
+    protected int next;
+
+    private List<Character> indexElements;
+
+    /**
+     * Construct the SplitIndexWriter. Uses path to this file and relative path
+     * from this file.
+     *
+     * @param path       Path to the file which is getting generated.
+     * @param indexbuilder Unicode based Index from {@link IndexBuilder}
+     */
+    public SplitIndexWriter(ConfigurationImpl configuration,
+                            DocPath path,
+                            IndexBuilder indexbuilder,
+                            Collection<Character> elements,
+                            int prev, int next) throws IOException {
+        super(configuration, path, indexbuilder);
+        this.indexElements = new ArrayList<>(elements);
+        this.prev = prev;
+        this.next = next;
+    }
+
+    /**
+     * Generate separate index files, for each Unicode character, listing all
+     * the members starting with the particular unicode character.
+     *
+     * @param indexbuilder IndexBuilder built by {@link IndexBuilder}
+     * @throws DocletAbortException
+     */
+    public static void generate(ConfigurationImpl configuration,
+                                IndexBuilder indexbuilder) {
+        SplitIndexWriter indexgen;
+        DocPath filename = DocPath.empty;
+        DocPath path = DocPaths.INDEX_FILES;
+        try {
+            Set<Character> keys = new TreeSet<>(indexbuilder.getIndexMap().keySet());
+            keys.addAll(configuration.tagSearchIndexKeys);
+            ListIterator<Character> li = new ArrayList<>(keys).listIterator();
+            while (li.hasNext()) {
+                Object ch = li.next();
+                filename = DocPaths.indexN(li.nextIndex());
+                indexgen = new SplitIndexWriter(configuration,
+                        path.resolve(filename),
+                        indexbuilder, keys, li.previousIndex(), li.nextIndex());
+                indexgen.generateIndexFile((Character) ch);
+                if (!li.hasNext()) {
+                    indexgen.createSearchIndexFiles();
+                }
+                indexgen.close();
+            }
+        } catch (IOException exc) {
+            configuration.standardmessage.error(
+                        "doclet.exception_encountered",
+                        exc.toString(), filename.getPath());
+            throw new DocletAbortException(exc);
+        }
+    }
+
+    /**
+     * Generate the contents of each index file, with Header, Footer,
+     * Member Field, Method and Constructor Description.
+     *
+     * @param unicode Unicode character referring to the character for the
+     * index.
+     */
+    protected void generateIndexFile(Character unicode) throws IOException {
+        String title = configuration.getText("doclet.Window_Split_Index",
+                unicode.toString());
+        HtmlTree body = getBody(true, getWindowTitle(title));
+        HtmlTree htmlTree = (configuration.allowTag(HtmlTag.HEADER))
+                ? HtmlTree.HEADER()
+                : body;
+        addTop(htmlTree);
+        addNavLinks(true, htmlTree);
+        if (configuration.allowTag(HtmlTag.HEADER)) {
+            body.addContent(htmlTree);
+        }
+        HtmlTree divTree = new HtmlTree(HtmlTag.DIV);
+        divTree.addStyle(HtmlStyle.contentContainer);
+        addLinksForIndexes(divTree);
+        if (configuration.tagSearchIndexMap.get(unicode) == null) {
+            addContents(unicode, indexbuilder.getMemberList(unicode), divTree);
+        } else if (indexbuilder.getMemberList(unicode) == null) {
+            addSearchContents(unicode, configuration.tagSearchIndexMap.get(unicode), divTree);
+        } else {
+            addContents(unicode, indexbuilder.getMemberList(unicode),
+                    configuration.tagSearchIndexMap.get(unicode), divTree);
+        }
+        addLinksForIndexes(divTree);
+        body.addContent((configuration.allowTag(HtmlTag.MAIN)) ? HtmlTree.MAIN(divTree) : divTree);
+        if (configuration.allowTag(HtmlTag.FOOTER)) {
+            htmlTree = HtmlTree.FOOTER();
+        }
+        addNavLinks(false, htmlTree);
+        addBottom(htmlTree);
+        if (configuration.allowTag(HtmlTag.FOOTER)) {
+            body.addContent(htmlTree);
+        }
+        printHtmlDocument(null, true, body);
+    }
+
+    /**
+     * Add links for all the Index Files per unicode character.
+     *
+     * @param contentTree the content tree to which the links for indexes will be added
+     */
+    protected void addLinksForIndexes(Content contentTree) {
+        for (int i = 0; i < indexElements.size(); i++) {
+            int j = i + 1;
+            contentTree.addContent(getHyperLink(DocPaths.indexN(j),
+                    new StringContent(indexElements.get(i).toString())));
+            contentTree.addContent(getSpace());
+        }
+    }
+
+    /**
+     * Get link to the previous unicode character.
+     *
+     * @return a content tree for the link
+     */
+    public Content getNavLinkPrevious() {
+        Content prevletterLabel = getResource("doclet.Prev_Letter");
+        if (prev == -1) {
+            return HtmlTree.LI(prevletterLabel);
+        }
+        else {
+            Content prevLink = getHyperLink(DocPaths.indexN(prev),
+                    prevletterLabel);
+            return HtmlTree.LI(prevLink);
+        }
+    }
+
+    /**
+     * Get link to the next unicode character.
+     *
+     * @return a content tree for the link
+     */
+    public Content getNavLinkNext() {
+        Content nextletterLabel = getResource("doclet.Next_Letter");
+        if (next == -1) {
+            return HtmlTree.LI(nextletterLabel);
+        }
+        else {
+            Content nextLink = getHyperLink(DocPaths.indexN(next),
+                    nextletterLabel);
+            return HtmlTree.LI(nextLink);
+        }
+    }
+}