org.eclipse.ocl.examples.build.utilities.StandaloneASTFacadeHelper.java Source code

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Here is the source code for org.eclipse.ocl.examples.build.utilities.StandaloneASTFacadeHelper.java

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/*******************************************************************************
 * Copyright (c) 2013 E.D.Willink 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:
 *     E.D.Willink - initial API and implementation
 *******************************************************************************/
package org.eclipse.ocl.examples.build.utilities;

import java.util.Map;

import org.eclipse.emf.codegen.merge.java.JControlModel;
import org.eclipse.emf.codegen.merge.java.facade.ast.ASTFacadeHelper;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.formatter.DefaultCodeFormatterConstants;

public final class StandaloneASTFacadeHelper extends ASTFacadeHelper { // Workaround
    // Bug
    // 308069

    @Override
    public Map<?, ?> getJavaCoreOptions() {
        if (javaCoreOptions == null) {
            javaCoreOptions = getDefaultJavaCoreOptions();
        }
        return javaCoreOptions;
    }

    @Override
    protected void useCurrentOption(Map<Object, String> options, String option, String defaultValue) {
        String value = JavaCore.getOption(option);
        if (value != null) {
            options.put(option, value);
        } else if (!options.containsKey(option)) {
            options.put(option, defaultValue);
        }
    }

    /**
     * Gets JavaCore options from JavaCore and updates tab and indentation
     * settings from ControlModel.
     * 
     * @return map of options
     * 
     * @see #getJavaCoreOptions()
     * @see JavaCore#getOptions()
     * @see JControlModel#getLeadingTabReplacement()
     */
    @SuppressWarnings("unchecked")
    private Map<?, ?> getDefaultJavaCoreOptions() {
        String compilerCompliance = JavaCore.VERSION_1_5;
        Map<Object, String> javaCoreOptions = JavaCore.getOptions();

        // Set of options that we want to copy from the current definition
        javaCoreOptions.put(JavaCore.COMPILER_COMPLIANCE, compilerCompliance);
        javaCoreOptions.put(JavaCore.COMPILER_SOURCE, compilerCompliance);
        javaCoreOptions.put(JavaCore.COMPILER_CODEGEN_TARGET_PLATFORM, compilerCompliance);
        useCurrentOption(javaCoreOptions, DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR, JavaCore.SPACE);
        useCurrentOption(javaCoreOptions, DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE, "2");
        useCurrentOption(javaCoreOptions, DefaultCodeFormatterConstants.FORMATTER_INDENTATION_SIZE, "2");

        if (getControlModel() != null) {
            String indent = getControlModel().getLeadingTabReplacement();
            if (indent != null && indent.length() > 0) {
                String size = Integer.toString(indent.length());
                if (indent.charAt(0) == '\t') {
                    javaCoreOptions.put(DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR, JavaCore.TAB);
                    javaCoreOptions.put(DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE, size);
                    javaCoreOptions.put(DefaultCodeFormatterConstants.FORMATTER_INDENTATION_SIZE, size);
                } else if (indent.charAt(0) == ' ') {
                    javaCoreOptions.put(DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR, JavaCore.SPACE);
                    javaCoreOptions.put(DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE, size);
                    javaCoreOptions.put(DefaultCodeFormatterConstants.FORMATTER_INDENTATION_SIZE, size);
                } else {
                    if (DEBUG) {
                        logInfo("Unable to recognize indent string, using java core options.");
                    }
                }
            } else {
                if (DEBUG) {
                    logInfo("Indent is not set, using java core options.");
                }
            }
        }

        if (DEBUG) {
            logInfo("Tab char: " + javaCoreOptions.get(DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR)
                    + ", Indent size: " + javaCoreOptions.get(DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE)
                    + ", Tab size: "
                    + javaCoreOptions.get(DefaultCodeFormatterConstants.FORMATTER_INDENTATION_SIZE));
        }

        // Set of options that we want to control
        javaCoreOptions.put("org.eclipse.jdt.core.incompleteClasspath", "warning");
        javaCoreOptions.put("org.eclipse.jdt.core.circularClasspath", "warning");
        //
        javaCoreOptions.put(DefaultCodeFormatterConstants.FORMATTER_BRACE_POSITION_FOR_ENUM_DECLARATION,
                DefaultCodeFormatterConstants.NEXT_LINE);
        javaCoreOptions.put(DefaultCodeFormatterConstants.FORMATTER_BRACE_POSITION_FOR_TYPE_DECLARATION,
                DefaultCodeFormatterConstants.NEXT_LINE);

        // separate fields with an empty line
        javaCoreOptions.put(DefaultCodeFormatterConstants.FORMATTER_BLANK_LINES_BEFORE_FIELD, "1");

        // make all enum constants to be on separate lines
        javaCoreOptions.put(DefaultCodeFormatterConstants.FORMATTER_ALIGNMENT_FOR_ENUM_CONSTANTS,
                DefaultCodeFormatterConstants.createAlignmentValue(true,
                        DefaultCodeFormatterConstants.WRAP_ONE_PER_LINE,
                        DefaultCodeFormatterConstants.INDENT_DEFAULT));

        return javaCoreOptions;
    }
}