com.mountainminds.eclemma.internal.ui.coverageview.CellTextConverter.java Source code

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Here is the source code for com.mountainminds.eclemma.internal.ui.coverageview.CellTextConverter.java

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/*******************************************************************************
 * Copyright (c) 2006, 2014 Mountainminds GmbH & Co. KG and Contributors
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Marc R. Hoffmann - initial API and implementation
 *    
 ******************************************************************************/
package com.mountainminds.eclemma.internal.ui.coverageview;

import java.text.DecimalFormat;
import java.text.NumberFormat;

import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.ui.model.WorkbenchLabelProvider;
import org.jacoco.core.analysis.ICounter;
import org.jacoco.core.analysis.ICoverageNode.ElementType;

import com.mountainminds.eclemma.core.CoverageTools;
import com.mountainminds.eclemma.internal.ui.EclEmmaUIPlugin;
import com.mountainminds.eclemma.internal.ui.UIMessages;

/**
 * Internal converter to create textual representations for table cells.
 */
class CellTextConverter {

    private static final NumberFormat COVERAGE_VALUE = new DecimalFormat(
            UIMessages.CoverageView_columnCoverageValue);

    private static final NumberFormat COUNTER_VALUE = DecimalFormat.getIntegerInstance();

    private final ViewSettings settings;
    private final ILabelProvider workbenchLabelProvider;

    CellTextConverter(ViewSettings settings) {
        this.settings = settings;
        this.workbenchLabelProvider = new WorkbenchLabelProvider();
    }

    String getElementName(Object element) {
        String text = getSimpleTextForJavaElement(element);
        if (element instanceof IPackageFragmentRoot && ElementType.BUNDLE.equals(settings.getRootType())) {
            text += " - " + getElementName(((IPackageFragmentRoot) element).getJavaProject()); //$NON-NLS-1$
        }
        return text;
    }

    private String getSimpleTextForJavaElement(Object element) {
        if (element instanceof IPackageFragmentRoot) {
            final IPackageFragmentRoot root = (IPackageFragmentRoot) element;
            // tweak label if the package fragment root is the project itself:
            if (root.getElementName().length() == 0) {
                element = root.getJavaProject();
            }
            // shorten JAR references
            try {
                if (root.getKind() == IPackageFragmentRoot.K_BINARY) {
                    return root.getPath().lastSegment();
                }
            } catch (JavaModelException e) {
                EclEmmaUIPlugin.log(e);
            }
        }
        return workbenchLabelProvider.getText(element);
    }

    String getRatio(Object element) {
        ICounter counter = getCounter(element);
        if (counter.getTotalCount() == 0) {
            return ""; //$NON-NLS-1$
        } else {
            return COVERAGE_VALUE.format(counter.getCoveredRatio());
        }
    }

    String getCovered(Object element) {
        return COUNTER_VALUE.format(getCounter(element).getCoveredCount());
    }

    String getMissed(Object element) {
        return COUNTER_VALUE.format(getCounter(element).getMissedCount());
    }

    String getTotal(Object element) {
        return COUNTER_VALUE.format(getCounter(element).getTotalCount());
    }

    private ICounter getCounter(Object element) {
        return CoverageTools.getCoverageInfo(element).getCounter(settings.getCounters());
    }

}