937d91ab1d
Reorganized column header popup menu. git-svn-id: http://google-refine.googlecode.com/svn/trunk@44 7d457c2a-affb-35e4-300a-418c747d4874
40 lines
1.1 KiB
Java
40 lines
1.1 KiB
Java
package com.metaweb.gridworks.model.operations;
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import org.json.JSONException;
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import org.json.JSONObject;
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import com.metaweb.gridworks.browsing.Engine;
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import com.metaweb.gridworks.model.AbstractOperation;
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import com.metaweb.gridworks.model.Project;
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import com.metaweb.gridworks.util.ParsingUtilities;
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abstract public class EngineDependentOperation implements AbstractOperation {
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private static final long serialVersionUID = -2800091595856881731L;
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final private String _engineConfigString;
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transient protected JSONObject _engineConfig;
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protected EngineDependentOperation(JSONObject engineConfig) {
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_engineConfig = engineConfig;
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_engineConfigString = engineConfig.toString();
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}
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protected Engine createEngine(Project project) throws Exception {
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Engine engine = new Engine(project);
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engine.initializeFromJSON(getEngineConfig());
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return engine;
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}
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protected JSONObject getEngineConfig() {
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if (_engineConfig == null) {
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try {
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_engineConfig = ParsingUtilities.evaluateJsonStringToObject(_engineConfigString);
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} catch (JSONException e) {
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// ignore
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}
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}
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return _engineConfig;
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}
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}
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