]> gitweb.fperrin.net Git - Dictionary.git/blobdiff - src/com/hughes/android/dictionary/engine/HtmlEntry.java
Use StringBuilder instead of String.format.
[Dictionary.git] / src / com / hughes / android / dictionary / engine / HtmlEntry.java
index 404bc6a28f21713dbd8a2ddf7031d3ff28805fca..fc15c788b41ef31f23cb9ac631cb8dbc9ad1cc26 100644 (file)
-package com.hughes.android.dictionary.engine;
 
-import com.hughes.util.raf.RAFListSerializer;
-import com.hughes.util.raf.RAFSerializable;
-import com.ibm.icu.text.Transliterator;
+package com.hughes.android.dictionary.engine;
 
+import java.io.DataInput;
+import java.io.DataOutput;
 import java.io.IOException;
 import java.io.PrintStream;
-import java.io.RandomAccessFile;
+import java.lang.ref.SoftReference;
+import java.nio.charset.StandardCharsets;
 import java.util.List;
 import java.util.regex.Pattern;
 
-public class HtmlEntry extends AbstractEntry implements RAFSerializable<HtmlEntry>, Comparable<HtmlEntry> {
-  
-  public final String title;
-  public String html;
-  
-  public HtmlEntry(final EntrySource entrySource, String title) {
-    super(entrySource);
-    this.title = title;
-  }
-  
-  public HtmlEntry(Dictionary dictionary, RandomAccessFile raf, final int index) throws IOException {
-    super(dictionary, raf, index);
-    title = raf.readUTF();
-    html = raf.readUTF();
-  }
-  @Override
-  public void write(RandomAccessFile raf) throws IOException {
-    super.write(raf);
-    raf.writeUTF(title);
-    raf.writeUTF(html);
-  }
-
-  @Override
-  public void addToDictionary(Dictionary dictionary) {
-    assert index == -1;
-    dictionary.htmlEntries.add(this);
-    index = dictionary.htmlEntries.size() - 1;
-  }
-  
-  @Override
-  public RowBase CreateRow(int rowIndex, Index dictionaryIndex) {
-    return new Row(this.index, rowIndex, dictionaryIndex);
-  }
-
-  
-  static final class Serializer implements RAFListSerializer<HtmlEntry> {
-    
-    final Dictionary dictionary;
-    
-    Serializer(Dictionary dictionary) {
-      this.dictionary = dictionary;
+import com.hughes.util.DataInputBuffer;
+import com.hughes.util.StringUtil;
+import com.hughes.util.raf.RAFListSerializer;
+import com.hughes.util.raf.RAFListSerializerSkippable;
+import com.ibm.icu.text.Transliterator;
+
+public class HtmlEntry extends AbstractEntry implements Comparable<HtmlEntry> {
+
+    // Title is not HTML escaped.
+    public final String title;
+    private final LazyHtmlLoader lazyHtmlLoader;
+    @SuppressWarnings("WeakerAccess")
+    public String html;
+
+    public HtmlEntry(final EntrySource entrySource, String title) {
+        super(entrySource);
+        this.title = title;
+        lazyHtmlLoader = null;
     }
 
-    @Override
-    public HtmlEntry read(RandomAccessFile raf, final int index) throws IOException {
-      return new HtmlEntry(dictionary, raf, index);
+    public HtmlEntry(Dictionary dictionary, DataInput raf, final int index)
+    throws IOException {
+        super(dictionary, raf, index);
+        title = raf.readUTF();
+        lazyHtmlLoader = new LazyHtmlLoader(raf, dictionary.htmlData, index);
+        html = null;
+    }
+
+    private void writeBase(DataOutput raf) throws IOException {
+        super.write(raf);
+        raf.writeUTF(title);
+    }
+
+    private void writeData(DataOutput raf) throws IOException {
+        final byte[] bytes = getHtml().getBytes(StandardCharsets.UTF_8);
+        StringUtil.writeVarInt(raf, bytes.length);
+        raf.write(bytes);
+    }
+
+    private static DataInputBuffer readData(DataInput raf) throws IOException {
+        int len = StringUtil.readVarInt(raf);
+        return ((DataInputBuffer)raf).slice(len);
+    }
+
+    String getHtml() {
+        return html != null ? html : lazyHtmlLoader.getHtml();
     }
 
     @Override
-    public void write(RandomAccessFile raf, HtmlEntry t) throws IOException {
-      t.write(raf);
-    }
-  };
-
-  public String getRawText(final boolean compact) {
-    return title + ":\n" + html;
-  }
-
-  
-  @Override
-  public int compareTo(HtmlEntry another) {
-    if (title.compareTo(another.title) != 0) {
-      return title.compareTo(another.title);
-    }
-    return html.compareTo(another.html);
-  }
-  
-  @Override
-  public String toString() {
-    return getRawText(false);
-  }
-  
-  // --------------------------------------------------------------------
-  
-
-  public static class Row extends RowBase {
-    
-    boolean isExpanded = false;
-    
-    Row(final RandomAccessFile raf, final int thisRowIndex,
-        final Index index) throws IOException {
-      super(raf, thisRowIndex, index);
-    }
-
-    Row(final int referenceIndex, final int thisRowIndex,
-        final Index index) {
-      super(referenceIndex, thisRowIndex, index);
-    }
-    
+    public void addToDictionary(Dictionary dictionary) {
+        assert index == -1;
+        dictionary.htmlEntries.add(this);
+        index = dictionary.htmlEntries.size() - 1;
+    }
+
     @Override
-    public String toString() {
-      return getRawText(false);
+    public RowBase CreateRow(int rowIndex, Index dictionaryIndex) {
+        return new Row(this.index, rowIndex, dictionaryIndex);
     }
 
-    public HtmlEntry getEntry() {
-      return index.dict.htmlEntries.get(referenceIndex);
+    static final class Serializer implements RAFListSerializerSkippable<HtmlEntry> {
+
+        final Dictionary dictionary;
+
+        Serializer(Dictionary dictionary) {
+            this.dictionary = dictionary;
+        }
+
+        @Override
+        public HtmlEntry read(DataInput raf, final int index) throws IOException {
+            return new HtmlEntry(dictionary, raf, index);
+        }
+
+        @Override
+        public void skip(DataInput raf, final int index) throws IOException {
+            if (dictionary.dictFileVersion >= 7)
+            {
+                StringUtil.readVarInt(raf);
+            }
+            else
+            {
+                raf.skipBytes(2);
+            }
+            int l = raf.readUnsignedShort();
+            raf.skipBytes(l);
+       }
+
+        @Override
+        public void write(DataOutput raf, HtmlEntry t) throws IOException {
+            t.writeBase(raf);
+        }
     }
-    
-    @Override
-    public void print(PrintStream out) {
-      final HtmlEntry entry = getEntry();
-      out.println(entry);
+
+    static final class DataSerializer implements RAFListSerializer<HtmlEntry> {
+        @Override
+        public HtmlEntry read(DataInput raf, final int index) {
+            assert false;
+            return null;
+        }
+
+        @Override
+        public void write(DataOutput raf, HtmlEntry t) throws IOException {
+            t.writeData(raf);
+        }
+    }
+
+    static final class DataDeserializer implements RAFListSerializer<DataInputBuffer> {
+        @Override
+        public DataInputBuffer read(DataInput raf, final int index) throws IOException {
+            return readData(raf);
+        }
+
+        @Override
+        public void write(DataOutput raf, DataInputBuffer t) {
+            assert false;
+        }
+    }
+
+    private String getRawText(final boolean compact) {
+        return title + ":\n" + getHtml();
     }
 
     @Override
-    public String getRawText(boolean compact) {
-      final HtmlEntry entry = getEntry();
-      return entry.getRawText(compact);
+    public int compareTo(/*@NonNull*/ HtmlEntry another) {
+        if (title.compareTo(another.title) != 0) {
+            return title.compareTo(another.title);
+        }
+        return getHtml().compareTo(another.getHtml());
     }
 
     @Override
-    public RowMatchType matches(final List<String> searchTokens, final Pattern orderedMatchPattern, final Transliterator normalizer, final boolean swapPairEntries) {
-      final String text = normalizer.transform(getRawText(false));
-      if (orderedMatchPattern.matcher(text).find()) {
-        return RowMatchType.ORDERED_MATCH;
-      }
-      for (int i = searchTokens.size() - 1; i >= 0; --i) {
-        final String searchToken = searchTokens.get(i);
-        if (!text.contains(searchToken)) {
-          return RowMatchType.NO_MATCH;
-        }
-      }
-      return RowMatchType.BAG_OF_WORDS_MATCH;
-    }
-    
-  }
+    public String toString() {
+        return getRawText(false);
+    }
+
+    // --------------------------------------------------------------------
+
+    public static class Row extends RowBase {
+
+        Row(final DataInput raf, final int thisRowIndex,
+            final Index index, int extra) throws IOException {
+            super(raf, thisRowIndex, index, extra);
+        }
+
+        Row(final int referenceIndex, final int thisRowIndex,
+            final Index index) {
+            super(referenceIndex, thisRowIndex, index);
+        }
+
+        @Override
+        public String toString() {
+            return getRawText(false);
+        }
+
+        public HtmlEntry getEntry() {
+            return index.dict.htmlEntries.get(referenceIndex);
+        }
+
+        @Override
+        public void print(PrintStream out) {
+            final HtmlEntry entry = getEntry();
+            out.println("See also HtmlEntry:" + entry.title);
+        }
+
+        @Override
+        public String getRawText(boolean compact) {
+            final HtmlEntry entry = getEntry();
+            return entry.getRawText(compact);
+        }
+
+        @Override
+        public RowMatchType matches(final List<String> searchTokens,
+                                    final Pattern orderedMatchPattern, final Transliterator normalizer,
+                                    final boolean swapPairEntries) {
+            final String text = normalizer.transform(getRawText(false));
+            if (orderedMatchPattern.matcher(text).find()) {
+                return RowMatchType.ORDERED_MATCH;
+            }
+            for (int i = searchTokens.size() - 1; i >= 0; --i) {
+                final String searchToken = searchTokens.get(i);
+                if (!text.contains(searchToken)) {
+                    return RowMatchType.NO_MATCH;
+                }
+            }
+            return RowMatchType.BAG_OF_WORDS_MATCH;
+        }
+    }
+
+    public static String htmlBody(final List<HtmlEntry> htmlEntries, final String indexShortName) {
+        final StringBuilder result = new StringBuilder();
+        for (final HtmlEntry htmlEntry : htmlEntries) {
+            final String titleEscaped = StringUtil.escapeUnicodeToPureHtml(htmlEntry.title);
+            result.append(String.format("<h1><a href=\"%s\">%s</a></h1>\n<p>%s\n",
+                                        formatQuickdicUrl(indexShortName, htmlEntry.title), titleEscaped,
+                                        htmlEntry.getHtml()));
+        }
+        return result.toString();
+    }
+
+    @SuppressWarnings("WeakerAccess")
+    public static String formatQuickdicUrl(final String indexShortName, final String text) {
+        assert !indexShortName.contains(":");
+        assert text.length() > 0;
+        StringBuilder s = new StringBuilder("q://d?");
+        s.append(indexShortName);
+        s.append("&");
+        s.append(StringUtil.encodeForUrl(text));
+        return s.toString();
+    }
+
+    public static boolean isQuickdicUrl(String url) {
+        return url.startsWith("q://d?");
+    }
+
+    // --------------------------------------------------------------------
+
+    @SuppressWarnings("WeakerAccess")
+    public static final class LazyHtmlLoader {
+        final DataInputBuffer buf;
+        final int numBytes;
+        final List<DataInputBuffer> data;
+        final int index;
+
+        // Not sure this volatile is right, but oh well.
+        volatile SoftReference<String> htmlRef = new SoftReference<>(null);
+
+        private LazyHtmlLoader(final DataInput inp, List<DataInputBuffer> data, int index) throws IOException {
+            this.data = data;
+            this.index = index;
+            if (data != null) {
+                buf = null;
+                this.numBytes = -1;
+                return;
+            }
+            numBytes = Math.min(inp.readInt(), 20 * 1024 * 1024);
+            int numZipBytes = Math.min(inp.readInt(), 20 * 1024 * 1024);
+            DataInputBuffer b = (DataInputBuffer)inp;
+            buf = b.slice(numZipBytes);
+        }
+
+        String getHtml() {
+            String html = htmlRef.get();
+            if (html != null) {
+                return html;
+            }
+            if (data != null) {
+                html = data.get(index).asString();
+                htmlRef = new SoftReference<>(html);
+                return html;
+            }
+            System.out.println("Loading Html: numBytes=" + numBytes + ", numZipBytes="
+                               + buf.limit());
+            final byte[] zipBytes = new byte[buf.limit()];
+            buf.rewind();
+            buf.readFully(zipBytes);
+            try {
+                final byte[] bytes = StringUtil.unzipFully(zipBytes, numBytes);
+                html = new String(bytes, StandardCharsets.UTF_8);
+            } catch (IOException e) {
+                throw new RuntimeException("Dictionary HTML data corrupted", e);
+            }
+            htmlRef = new SoftReference<>(html);
+            return html;
+        }
+    }
 
 }