Example usage for org.eclipse.jdt.internal.core JavaModelManager knowsOption

Introduction

In this page you can find the example usage for org.eclipse.jdt.internal.core JavaModelManager knowsOption.

Prototype

public boolean knowsOption(String optionName) 

Source Link

Document

Returns whether an option name is known or not.

Usage

From source file:org.eclipse.jdt.internal.core.JavaProject.java

License:Open Source License

/**
 * @see org.eclipse.jdt.core.IJavaProject#getOptions(boolean)
 *//*from w ww  .java 2s.  c  o m*/
public Map getOptions(boolean inheritJavaCoreOptions) {

    // initialize to the defaults from JavaCore options pool
    Map options = inheritJavaCoreOptions ? JavaCore.getOptions() : new Hashtable(5);

    // Get project specific options
    JavaModelManager.PerProjectInfo perProjectInfo = null;
    Hashtable projectOptions = null;
    JavaModelManager javaModelManager = JavaModelManager.getJavaModelManager();
    HashSet optionNames = javaModelManager.optionNames;
    try {
        perProjectInfo = getPerProjectInfo();
        projectOptions = perProjectInfo.options;
        if (projectOptions == null) {
            // get eclipse preferences
            IEclipsePreferences projectPreferences = getEclipsePreferences();
            if (projectPreferences == null)
                return options; // cannot do better (non-Java project)
            // create project options
            String[] propertyNames = projectPreferences.keys();
            projectOptions = new Hashtable(propertyNames.length);
            for (int i = 0; i < propertyNames.length; i++) {
                String propertyName = propertyNames[i];
                String value = projectPreferences.get(propertyName, null);
                if (value != null) {
                    value = value.trim();
                    // Keep the option value, even if it's deprecated
                    // see bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=324987
                    projectOptions.put(propertyName, value);
                    if (!optionNames.contains(propertyName)) {
                        // try to migrate deprecated options
                        String[] compatibleOptions = (String[]) javaModelManager.deprecatedOptions
                                .get(propertyName);
                        if (compatibleOptions != null) {
                            for (int co = 0, length = compatibleOptions.length; co < length; co++) {
                                String compatibleOption = compatibleOptions[co];
                                if (!projectOptions.containsKey(compatibleOption))
                                    projectOptions.put(compatibleOption, value);
                            }
                        }
                    }
                }
            }

            // cache project options
            perProjectInfo.options = projectOptions;
        }
    } catch (JavaModelException jme) {
        projectOptions = new Hashtable();
    } catch (BackingStoreException e) {
        projectOptions = new Hashtable();
    }

    // Inherit from JavaCore options if specified
    if (inheritJavaCoreOptions) {
        Iterator propertyNames = projectOptions.entrySet().iterator();
        while (propertyNames.hasNext()) {
            Map.Entry entry = (Map.Entry) propertyNames.next();
            String propertyName = (String) entry.getKey();
            String propertyValue = (String) entry.getValue();
            if (propertyValue != null && javaModelManager.knowsOption(propertyName)) {
                options.put(propertyName, propertyValue.trim());
            }
        }
        Util.fixTaskTags(options);
        return options;
    }
    Util.fixTaskTags(projectOptions);
    return projectOptions;
}

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