75 lines
2.2 KiB
Java
75 lines
2.2 KiB
Java
// Copyright (C) 2009 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package org.eclipse.jgit.diff;
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import com.google.gwt.core.client.JavaScriptObject;
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import com.google.gwtjsonrpc.client.impl.JsonSerializer;
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import java.util.ArrayList;
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import java.util.List;
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public class Edit_JsonSerializer extends JsonSerializer<Edit> {
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public static final Edit_JsonSerializer INSTANCE = new Edit_JsonSerializer();
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@Override
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public Edit fromJson(Object jso) {
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if (jso == null) {
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return null;
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}
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final JavaScriptObject o = (JavaScriptObject) jso;
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final int cnt = length(o);
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if (4 == cnt) {
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return new Edit(get(o, 0), get(o, 1), get(o, 2), get(o, 3));
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}
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List<Edit> l = new ArrayList<>((cnt / 4) - 1);
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for (int i = 4; i < cnt; ) {
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int as = get(o, i++);
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int ae = get(o, i++);
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int bs = get(o, i++);
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int be = get(o, i++);
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l.add(new Edit(as, ae, bs, be));
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}
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return new ReplaceEdit(get(o, 0), get(o, 1), get(o, 2), get(o, 3), l);
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}
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@Override
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public void printJson(StringBuilder sb, Edit o) {
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sb.append('[');
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append(sb, o);
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if (o instanceof ReplaceEdit) {
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for (Edit e : ((ReplaceEdit) o).getInternalEdits()) {
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sb.append(',');
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append(sb, e);
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}
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}
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sb.append(']');
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}
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private void append(StringBuilder sb, Edit o) {
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sb.append(o.getBeginA());
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sb.append(',');
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sb.append(o.getEndA());
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sb.append(',');
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sb.append(o.getBeginB());
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sb.append(',');
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sb.append(o.getEndB());
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}
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private static native int length(JavaScriptObject jso) /*-{ return jso.length; }-*/;
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private static native int get(JavaScriptObject jso, int idx) /*-{ return jso[idx]; }-*/;
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}
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