Package org.apache.commons.collections

Examples of org.apache.commons.collections.Transformer

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        }
    }

    private List<String> toLocalPath(List<String> patternList) {
        List<String> transformed = new ArrayList<String>(patternList);
        CollectionUtils.transform(transformed, new Transformer() {
            public Object transform(Object input) {
                String pattern=(String)input;
                return pattern!=null ? pattern.replace('/', File.separatorChar) : null;
            }
        });
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    public Expression expWithParameters(
            final Map<String, ?> parameters,
            final boolean pruneMissing) {

        // create transformer for named parameters
        Transformer transformer = new Transformer() {

            public Object transform(Object object) {
                if (!(object instanceof ExpressionParameter)) {
                    return object;
                }
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        // master PK columns
        if (descriptor.isMaster()) {
            for (final DbAttribute attribute : descriptor.getDbEntity().getPrimaryKeys()) {
                attributes.add(attribute);
                valueTransformers.add(new Transformer() {

                    public Object transform(Object input) {
                        ObjectId id = (ObjectId) ((ObjectDiff) input).getNodeId();
                        return id.getIdSnapshot().get(attribute.getName());
                    }
                });
            }
        }
        else {

            // TODO: andrus 12/23/2007 - only one step relationship is supported...
            if (descriptor.getPathFromMaster().size() != 1) {
                throw new CayenneRuntimeException(
                        "Only single step dependent relationships are currently supported. Actual path length: "
                                + descriptor.getPathFromMaster().size());
            }
           
            DbRelationship masterDependentDbRel = descriptor.getPathFromMaster().get(0);

            if (masterDependentDbRel != null) {
                for (final DbJoin dbAttrPair : masterDependentDbRel.getJoins()) {
                    DbAttribute dbAttribute = dbAttrPair.getTarget();
                    if (!attributes.contains(dbAttribute)) {

                        attributes.add(dbAttribute);
                        valueTransformers.add(new Transformer() {

                            public Object transform(Object input) {
                                ObjectId id = (ObjectId) ((ObjectDiff) input).getNodeId();
                                return id.getIdSnapshot().get(dbAttrPair.getSourceName());
                            }
                        });
                    }
                }
            }
        }

        if (usingOptimisticLocking) {

            for (final ObjAttribute attribute : descriptor.getEntity().getAttributes()) {

                if (attribute.isUsedForLocking()) {
                    // only care about first step in a flattened attribute
                    DbAttribute dbAttribute = (DbAttribute) attribute
                            .getDbPathIterator()
                            .next();

                    if (!attributes.contains(dbAttribute)) {
                        attributes.add(dbAttribute);

                        valueTransformers.add(new Transformer() {

                            public Object transform(Object input) {
                                return ((ObjectDiff) input).getSnapshotValue(attribute
                                        .getName());
                            }
                        });
                    }
                }
            }

            for (final ObjRelationship relationship : descriptor
                    .getEntity()
                    .getRelationships()) {

                if (relationship.isUsedForLocking()) {
                    // only care about the first DbRelationship
                    DbRelationship dbRelationship = relationship
                            .getDbRelationships()
                            .get(0);

                    for (final DbJoin dbAttrPair : dbRelationship.getJoins()) {
                        DbAttribute dbAttribute = dbAttrPair.getSource();

                        // relationship transformers override attribute transformers for
                        // meaningful FK's... why meaningful FKs can go out of sync is
                        // another story (CAY-595)
                        int index = attributes.indexOf(dbAttribute);
                        if (index >= 0 && !dbAttribute.isForeignKey()) {
                            continue;
                        }

                        Transformer transformer = new Transformer() {

                            public Object transform(Object input) {
                                ObjectId targetId = ((ObjectDiff) input)
                                        .getArcSnapshotValue(relationship.getName());
                                return targetId != null ? targetId.getIdSnapshot().get(
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    /*
     * Gets response from the underlying DataNodes.
     */
    void runQueryInTransaction() {

        domain.runInTransaction(new Transformer() {

            public Object transform(Object input) {
                runQuery();
                return null;
            }
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     */
    public void performQueries(
            final Collection<Query> queries,
            final OperationObserver callback) {

        runInTransaction(new Transformer() {

            public Object transform(Object input) {
                new DataDomainLegacyQueryAction(
                        DataDomain.this,
                        new QueryChain(queries),
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            // "cascade" and "no_cascade" are the same from the DataDomain
            // perspective,
            // including transaction handling logic
            case DataChannel.FLUSH_NOCASCADE_SYNC:
            case DataChannel.FLUSH_CASCADE_SYNC:
                result = (GraphDiff) runInTransaction(new Transformer() {

                    public Object transform(Object input) {
                        return onSyncFlush(originatingContext, changes);
                    }
                });
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     * @param args the array of args to escape
     * @return The cloned and escaped array of args
     */
    protected Object[] escape(final Format format, Object... args) {
        // Transformer that escapes HTML and XML strings
        Transformer escapingTransformer = new Transformer( ) {
            public Object transform(Object object) {
                switch ( format ){
                    case HTML: return escapeHtml(asString(object));
                    case XML: return escapeXml(asString(object));
                    default: return object;
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        return normalise(prefix(prefixWith, sort(scan(searchInDirectory, includes, excludes))));
    }

    protected List<String> normalise(List<String> paths) {
        List<String> transformed = new ArrayList<String>(paths);
        CollectionUtils.transform(transformed, new Transformer() {
            public Object transform(Object input) {
                String path = (String) input;
                return path.replace('\\', '/');
            }
        });
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    protected List<String> prefix(final String prefixWith, List<String> paths) {
        if (StringUtils.isBlank(prefixWith)) {
            return paths;
        }
        List<String> transformed = new ArrayList<String>(paths);
        CollectionUtils.transform(transformed, new Transformer() {
            public Object transform(Object input) {
                String path = (String) input;
                return prefixWith + path;
            }
        });
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        return transformed;
    }

    protected List<String> classNames(List<String> paths) {
        List<String> trasformed = new ArrayList<String>(paths);
        CollectionUtils.transform(trasformed, new Transformer() {
            public Object transform(Object input) {
                String path = (String) input;
                if (!StringUtils.endsWithIgnoreCase(path, classNameExtension())) {
                    return input;
                }
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