123614539d
git-svn-id: http://google-refine.googlecode.com/svn/trunk@2171 7d457c2a-affb-35e4-300a-418c747d4874
94 lines
3.8 KiB
Java
94 lines
3.8 KiB
Java
/*
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Copyright 2010, Google Inc.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the following disclaimer
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in the documentation and/or other materials provided with the
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distribution.
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* Neither the name of Google Inc. nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package com.google.refine.operations;
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import java.util.ArrayList;
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import java.util.List;
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import org.json.JSONObject;
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import com.google.refine.browsing.Engine;
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import com.google.refine.browsing.FilteredRows;
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import com.google.refine.browsing.RowVisitor;
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import com.google.refine.history.Change;
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import com.google.refine.history.HistoryEntry;
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import com.google.refine.model.Column;
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import com.google.refine.model.Project;
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import com.google.refine.model.changes.CellChange;
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import com.google.refine.model.changes.MassCellChange;
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abstract public class EngineDependentMassCellOperation extends EngineDependentOperation {
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final protected String _columnName;
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final protected boolean _updateRowContextDependencies;
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protected EngineDependentMassCellOperation(
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JSONObject engineConfig, String columnName, boolean updateRowContextDependencies) {
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super(engineConfig);
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_columnName = columnName;
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_updateRowContextDependencies = updateRowContextDependencies;
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}
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@Override
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protected HistoryEntry createHistoryEntry(Project project, long historyEntryID) throws Exception {
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Engine engine = createEngine(project);
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Column column = project.columnModel.getColumnByName(_columnName);
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if (column == null) {
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throw new Exception("No column named " + _columnName);
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}
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List<CellChange> cellChanges = new ArrayList<CellChange>(project.rows.size());
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FilteredRows filteredRows = engine.getAllFilteredRows();
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try {
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filteredRows.accept(project, createRowVisitor(project, cellChanges, historyEntryID));
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} catch (Exception e) {
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e.printStackTrace();
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}
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String description = createDescription(column, cellChanges);
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return new HistoryEntry(
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historyEntryID, project, description, this, createChange(project, column, cellChanges));
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}
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protected Change createChange(Project project, Column column, List<CellChange> cellChanges) {
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return new MassCellChange(
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cellChanges, column.getName(), _updateRowContextDependencies);
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}
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abstract protected RowVisitor createRowVisitor(Project project, List<CellChange> cellChanges, long historyEntryID) throws Exception;
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abstract protected String createDescription(Column column, List<CellChange> cellChanges);
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}
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