abstractfileset.java

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     * Returns the directory scanner needed to access the files to process.
     * @param p the Project against which the DirectoryScanner should be configured.
     * @return a <code>DirectoryScanner</code> instance.
     */
    public DirectoryScanner getDirectoryScanner(Project p) {
        if (isReference()) {
            return getRef(p).getDirectoryScanner(p);
        }
        DirectoryScanner ds = null;
        synchronized (this) {
            if (directoryScanner != null && p == getProject()) {
                ds = directoryScanner;
            } else {
                if (dir == null) {
                    throw new BuildException("No directory specified for "
                                             + getDataTypeName() + ".");
                }
                if (!dir.exists() && errorOnMissingDir) {
                    throw new BuildException(dir.getAbsolutePath()
                                             + " not found.");
                }
                if (!dir.isDirectory() && dir.exists()) {
                    throw new BuildException(dir.getAbsolutePath()
                                             + " is not a directory.");
                }
                ds = new DirectoryScanner();
                setupDirectoryScanner(ds, p);
                ds.setFollowSymlinks(followSymlinks);
                ds.setErrorOnMissingDir(errorOnMissingDir);
                directoryScanner = (p == getProject()) ? ds : directoryScanner;
            }
        }
        ds.scan();
        return ds;
    }

    /**
     * Set up the specified directory scanner against this
     * AbstractFileSet's Project.
     * @param ds a <code>FileScanner</code> instance.
     */
    public void setupDirectoryScanner(FileScanner ds) {
        setupDirectoryScanner(ds, getProject());
    }

    /**
     * Set up the specified directory scanner against the specified project.
     * @param ds a <code>FileScanner</code> instance.
     * @param p an Ant <code>Project</code> instance.
     */
    public synchronized void setupDirectoryScanner(FileScanner ds, Project p) {
        if (isReference()) {
            getRef(p).setupDirectoryScanner(ds, p);
            return;
        }
        if (ds == null) {
            throw new IllegalArgumentException("ds cannot be null");
        }
        ds.setBasedir(dir);

        PatternSet ps = mergePatterns(p);
        p.log(getDataTypeName() + ": Setup scanner in dir " + dir
            + " with " + ps, Project.MSG_DEBUG);

        ds.setIncludes(ps.getIncludePatterns(p));
        ds.setExcludes(ps.getExcludePatterns(p));
        if (ds instanceof SelectorScanner) {
            SelectorScanner ss = (SelectorScanner) ds;
            ss.setSelectors(getSelectors(p));
        }
        if (useDefaultExcludes) {
            ds.addDefaultExcludes();
        }
        ds.setCaseSensitive(caseSensitive);
    }

    /**
     * Performs the check for circular references and returns the
     * referenced FileSet.
     * @param p the current project
     * @return the referenced FileSet
     */
    protected AbstractFileSet getRef(Project p) {
        return (AbstractFileSet) getCheckedRef(p);
    }

    // SelectorContainer methods

    /**
     * Indicates whether there are any selectors here.
     *
     * @return whether any selectors are in this container.
     */
    public synchronized boolean hasSelectors() {
        return (isReference() && getProject() != null)
            ? getRef(getProject()).hasSelectors() : !(selectors.isEmpty());
    }

    /**
     * Indicates whether there are any patterns here.
     *
     * @return whether any patterns are in this container.
     */
    public synchronized boolean hasPatterns() {
        if (isReference() && getProject() != null) {
            return getRef(getProject()).hasPatterns();
        }
        if (defaultPatterns.hasPatterns(getProject())) {
            return true;
        }
        Enumeration e = additionalPatterns.elements();
        while (e.hasMoreElements()) {
            PatternSet ps = (PatternSet) e.nextElement();
            if (ps.hasPatterns(getProject())) {
                return true;
            }
        }
        return false;
    }

    /**
     * Gives the count of the number of selectors in this container.
     *
     * @return the number of selectors in this container as an <code>int</code>.
     */
    public synchronized int selectorCount() {
        return (isReference() && getProject() != null)
            ? getRef(getProject()).selectorCount() : selectors.size();
    }

    /**
     * Returns the set of selectors as an array.
     * @param p the current project
     * @return a <code>FileSelector[]</code> of the selectors in this container.
     */
    public synchronized FileSelector[] getSelectors(Project p) {
        return (isReference())
            ? getRef(p).getSelectors(p) : (FileSelector[]) (selectors.toArray(
            new FileSelector[selectors.size()]));
    }

    /**
     * Returns an enumerator for accessing the set of selectors.
     *
     * @return an <code>Enumeration</code> of selectors.
     */
    public synchronized Enumeration selectorElements() {
        return (isReference() && getProject() != null)
            ? getRef(getProject()).selectorElements() : selectors.elements();
    }

    /**
     * Add a new selector into this container.
     *
     * @param selector the new <code>FileSelector</code> to add.
     */
    public synchronized void appendSelector(FileSelector selector) {
        if (isReference()) {
            throw noChildrenAllowed();
        }
        selectors.addElement(selector);
        directoryScanner = null;
    }

    /* Methods below all add specific selectors */

    /**
     * Add a "Select" selector entry on the selector list.
     * @param selector the <code>SelectSelector</code> to add.
     */
    public void addSelector(SelectSelector selector) {
        appendSelector(selector);
    }

    /**
     * Add an "And" selector entry on the selector list.
     * @param selector the <code>AndSelector</code> to add.
     */
    public void addAnd(AndSelector selector) {
        appendSelector(selector);
    }

    /**
     * Add an "Or" selector entry on the selector list.
     * @param selector the <code>OrSelector</code> to add.
     */
    public void addOr(OrSelector selector) {
        appendSelector(selector);
    }

    /**
     * Add a "Not" selector entry on the selector list.
     * @param selector the <code>NotSelector</code> to add.
     */
    public void addNot(NotSelector selector) {
        appendSelector(selector);
    }

    /**
     * Add a "None" selector entry on the selector list.
     * @param selector the <code>NoneSelector</code> to add.
     */
    public void addNone(NoneSelector selector) {
        appendSelector(selector);
    }

    /**
     * Add a majority selector entry on the selector list.
     * @param selector the <code>MajoritySelector</code> to add.
     */
    public void addMajority(MajoritySelector selector) {
        appendSelector(selector);
    }

    /**
     * Add a selector date entry on the selector list.
     * @param selector the <code>DateSelector</code> to add.
     */
    public void addDate(DateSelector selector) {
        appendSelector(selector);
    }

    /**
     * Add a selector size entry on the selector list.
     * @param selector the <code>SizeSelector</code> to add.
     */
    public void addSize(SizeSelector selector) {
        appendSelector(selector);
    }

    /**
     * Add a DifferentSelector entry on the selector list.
     * @param selector the <code>DifferentSelector</code> to add.
     */
    public void addDifferent(DifferentSelector selector) {
        appendSelector(selector);
    }

    /**
     * Add a selector filename entry on the selector list.
     * @param selector the <code>FilenameSelector</code> to add.
     */
    public void addFilename(FilenameSelector selector) {
        appendSelector(selector);
    }

    /**
     * Add a selector type entry on the selector list.
     * @param selector the <code>TypeSelector</code> to add.
     */
    public void addType(TypeSelector selector) {
        appendSelector(selector);
    }

    /**
     * Add an extended selector entry on the selector list.
     * @param selector the <code>ExtendSelector</code> to add.
     */
    public void addCustom(ExtendSelector selector) {
        appendSelector(selector);
    }

    /**
     * Add a contains selector entry on the selector list.
     * @param selector the <code>ContainsSelector</code> to add.
     */
    public void addContains(ContainsSelector selector) {
        appendSelector(selector);
    }

    /**
     * Add a present selector entry on the selector list.
     * @param selector the <code>PresentSelector</code> to add.
     */
    public void addPresent(PresentSelector selector) {
        appendSelector(selector);
    }

    /**
     * Add a depth selector entry on the selector list.
     * @param selector the <code>DepthSelector</code> to add.
     */
    public void addDepth(DepthSelector selector) {
        appendSelector(selector);
    }

    /**
     * Add a depends selector entry on the selector list.
     * @param selector the <code>DependSelector</code> to add.
     */
    public void addDepend(DependSelector selector) {
        appendSelector(selector);
    }

    /**
     * Add a regular expression selector entry on the selector list.
     * @param selector the <code>ContainsRegexpSelector</code> to add.
     */
    public void addContainsRegexp(ContainsRegexpSelector selector) {
        appendSelector(selector);
    }

    /**
     * Add the modified selector.
     * @param selector the <code>ModifiedSelector</code> to add.
     * @since ant 1.6
     */
    public void addModified(ModifiedSelector selector) {
        appendSelector(selector);
    }

    /**
     * Add an arbitary selector.
     * @param selector the <code>FileSelector</code> to add.
     * @since Ant 1.6
     */
    public void add(FileSelector selector) {
        appendSelector(selector);
    }

    /**
     * Returns included files as a list of semicolon-separated filenames.
     *
     * @return a <code>String</code> of included filenames.
     */
    public String toString() {
        DirectoryScanner ds = getDirectoryScanner(getProject());
        String[] files = ds.getIncludedFiles();
        StringBuffer sb = new StringBuffer();

        for (int i = 0; i < files.length; i++) {
            if (i > 0) {
                sb.append(';');
            }
            sb.append(files[i]);
        }
        return sb.toString();
    }

    /**
     * Creates a deep clone of this instance, except for the nested
     * selectors (the list of selectors is a shallow clone of this
     * instance's list).
     * @return the cloned object
     * @since Ant 1.6
     */
    public synchronized Object clone() {
        if (isReference()) {
            return (getRef(getProject())).clone();
        } else {
            try {
                AbstractFileSet fs = (AbstractFileSet) super.clone();
                fs.defaultPatterns = (PatternSet) defaultPatterns.clone();
                fs.additionalPatterns = new Vector(additionalPatterns.size());
                Enumeration e = additionalPatterns.elements();
                while (e.hasMoreElements()) {
                    fs.additionalPatterns
                        .addElement(((PatternSet) e.nextElement()).clone());
                }
                fs.selectors = new Vector(selectors);
                return fs;
            } catch (CloneNotSupportedException e) {
                throw new BuildException(e);
            }
        }
    }

    /**
     * Get the merged include patterns for this AbstractFileSet.
     * @param p the project to use.
     * @return the include patterns of the default pattern set and all
     * nested patternsets.
     *
     * @since Ant 1.7
     */
    public String[] mergeIncludes(Project p) {
        return mergePatterns(p).getIncludePatterns(p);
    }

    /**
     * Get the merged exclude patterns for this AbstractFileSet.
     * @param p the project to use.
     * @return the exclude patterns of the default pattern set and all
     * nested patternsets.
     *
     * @since Ant 1.7
     */
    public String[] mergeExcludes(Project p) {
        return mergePatterns(p).getExcludePatterns(p);
    }

    /**
     * Get the merged patterns for this AbstractFileSet.
     * @param p the project to use.
     * @return the default patternset merged with the additional sets
     * in a new PatternSet instance.
     *
     * @since Ant 1.7
     */
    public synchronized PatternSet mergePatterns(Project p) {
        if (isReference()) {
            return getRef(p).mergePatterns(p);
        }
        PatternSet ps = (PatternSet) defaultPatterns.clone();
        final int count = additionalPatterns.size();
        for (int i = 0; i < count; i++) {
            Object o = additionalPatterns.elementAt(i);
            ps.append((PatternSet) o, p);
        }
        return ps;
    }

}