1 files changed, 104 insertions, 0 deletions
diff --git a/tests/src/org/kelar/inputmethod/latin/makedict/AbstractDictDecoder.java b/tests/src/org/kelar/inputmethod/latin/makedict/AbstractDictDecoder.java
new file mode 100644
index 000000000..978e6cd3a
--- /dev/null
+++ b/tests/src/org/kelar/inputmethod/latin/makedict/AbstractDictDecoder.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * 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.kelar.inputmethod.latin.makedict;
+
+import org.kelar.inputmethod.annotations.UsedForTesting;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.TreeMap;
+
+/**
+ * A base class of the binary dictionary decoder.
+ */
+public abstract class AbstractDictDecoder implements DictDecoder {
+    private static final int SUCCESS = 0;
+    private static final int ERROR_CANNOT_READ = 1;
+    private static final int ERROR_WRONG_FORMAT = 2;
+
+    @Override @UsedForTesting
+    public int getTerminalPosition(final String word)
+            throws IOException, UnsupportedFormatException {
+        if (!isDictBufferOpen()) {
+            openDictBuffer();
+        }
+        return BinaryDictIOUtils.getTerminalPosition(this, word);
+    }
+
+    @Override @UsedForTesting
+    public void readUnigramsAndBigramsBinary(final TreeMap<Integer, String> words,
+            final TreeMap<Integer, Integer> frequencies,
+            final TreeMap<Integer, ArrayList<PendingAttribute>> bigrams)
+            throws IOException, UnsupportedFormatException {
+        if (!isDictBufferOpen()) {
+            openDictBuffer();
+        }
+        BinaryDictIOUtils.readUnigramsAndBigramsBinary(this, words, frequencies, bigrams);
+    }
+
+    /**
+     * Check whether the header contains the expected information. This is a no-error method,
+     * that will return an error code and never throw a checked exception.
+     * @return an error code, either ERROR_* or SUCCESS.
+     */
+    private int checkHeader() {
+        try {
+            readHeader();
+        } catch (IOException e) {
+            return ERROR_CANNOT_READ;
+        } catch (UnsupportedFormatException e) {
+            return ERROR_WRONG_FORMAT;
+        }
+        return SUCCESS;
+    }
+
+    @Override
+    public boolean hasValidRawBinaryDictionary() {
+        return checkHeader() == SUCCESS;
+    }
+
+    // Placeholder implementations below. These are actually unused.
+    @Override
+    public void openDictBuffer() throws FileNotFoundException, IOException,
+            UnsupportedFormatException {
+    }
+
+    @Override
+    public boolean isDictBufferOpen() {
+        return false;
+    }
+
+    @Override
+    public PtNodeInfo readPtNode(final int ptNodePos) {
+        return null;
+    }
+
+    @Override
+    public void setPosition(int newPos) {
+    }
+
+    @Override
+    public int getPosition() {
+        return 0;
+    }
+
+    @Override
+    public int readPtNodeCount() {
+        return 0;
+    }
+}