Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2008, 2011 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/

import java.util.*;
import java.util.Map.Entry;
import java.util.jar.*;

import org.eclipse.osgi.service.resolver.*;
import org.osgi.framework.*;

public class Main {
    private static String ELEMENT_SEPARATOR = "; ";
    private static final Object EQUALS_QUOTE = "=\"";

    private static void addImports(Attributes attrigutes, BundleDescription compositeDesc,
            ExportPackageDescription[] matchingExports) {
        ExportPackageDescription[] exports = compositeDesc.getExportPackages();
        List systemExports = getSystemExports(matchingExports);
        if (exports.length == 0 && systemExports.size() == 0)
            return;
        StringBuffer importStatement = new StringBuffer();
        Collection importedNames = new ArrayList(exports.length);
        int i = 0;
        for (; i < exports.length; i++) {
            if (i != 0)
                importStatement.append(',');
            importedNames.add(exports[i].getName());
            getImportFrom(exports[i], importStatement);
        }
        for (Iterator iSystemExports = systemExports.iterator(); iSystemExports.hasNext();) {
            ExportPackageDescription systemExport = (ExportPackageDescription) iSystemExports.next();
            if (!importedNames.contains(systemExport.getName())) {
                if (i != 0)
                    importStatement.append(',');
                i++;
                importStatement.append(systemExport.getName()).append(ELEMENT_SEPARATOR)
                        .append(Constants.BUNDLE_SYMBOLICNAME_ATTRIBUTE).append('=')
                        .append(Constants.SYSTEM_BUNDLE_SYMBOLICNAME);
            }
        }
        attrigutes.putValue(Constants.IMPORT_PACKAGE, importStatement.toString());
    }

    private static List getSystemExports(ExportPackageDescription[] matchingExports) {
        ArrayList list = null;
        for (int i = 0; i < matchingExports.length; i++) {
            if (matchingExports[i].getExporter().getBundleId() != 0)
                continue;
            if (list == null)
                list = new ArrayList();
            list.add(matchingExports[i]);
        }
        return list == null ? Collections.EMPTY_LIST : list;
    }

    private static void getImportFrom(ExportPackageDescription export, StringBuffer importStatement) {
        importStatement.append(export.getName()).append(ELEMENT_SEPARATOR);
        Version version = export.getVersion();
        importStatement.append(Constants.VERSION_ATTRIBUTE).append(EQUALS_QUOTE).append('[').append(version)
                .append(',').append(new Version(version.getMajor(), version.getMinor(), version.getMicro() + 1))
                .append(')').append('\"');
        addMap(importStatement, export.getAttributes(), "="); //$NON-NLS-1$
    }

    private static void addMap(StringBuffer manifest, Map values, String assignment) {
        if (values == null)
            return; // nothing to add
        for (Iterator iEntries = values.entrySet().iterator(); iEntries.hasNext();) {
            manifest.append(ELEMENT_SEPARATOR);
            Map.Entry entry = (Entry) iEntries.next();
            manifest.append(entry.getKey()).append(assignment).append('\"');
            Object value = entry.getValue();
            if (value instanceof String[]) {
                String[] strings = (String[]) value;
                for (int i = 0; i < strings.length; i++) {
                    if (i != 0)
                        manifest.append(',');
                    manifest.append(strings[i]);
                }
            } else {
                manifest.append(value);
            }
            manifest.append('\"');
        }
    }
}