it.tidalwave.northernwind.frontend.filesystem.impl.ResourceFileNetBeansPlatform.java Source code

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Here is the source code for it.tidalwave.northernwind.frontend.filesystem.impl.ResourceFileNetBeansPlatform.java

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/*
 * #%L
 * *********************************************************************************************************************
 *
 * NorthernWind - lightweight CMS
 * http://northernwind.tidalwave.it - git clone https://bitbucket.org/tidalwave/northernwind-src.git
 * %%
 * Copyright (C) 2011 - 2016 Tidalwave s.a.s. (http://tidalwave.it)
 * %%
 * *********************************************************************************************************************
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations under the License.
 *
 * *********************************************************************************************************************
 *
 * $Id$
 *
 * *********************************************************************************************************************
 * #L%
 */
package it.tidalwave.northernwind.frontend.filesystem.impl;

import javax.annotation.CheckForNull;
import javax.annotation.Nonnull;
import javax.inject.Inject;
import javax.inject.Provider;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.List;
import java.time.Instant;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.io.File;
import java.io.IOException;
import org.openide.filesystems.FileObject;
import org.openide.filesystems.FileUtil;
import org.springframework.beans.factory.annotation.Configurable;
import com.google.common.base.Function;
import it.tidalwave.util.As;
import it.tidalwave.util.spi.AsSupport;
import it.tidalwave.northernwind.core.model.ResourceFile;
import it.tidalwave.northernwind.core.model.ResourceFileSystem;
import it.tidalwave.northernwind.core.model.ResourcePath;
import it.tidalwave.northernwind.core.model.MimeTypeResolver;
import it.tidalwave.northernwind.core.model.spi.ResourceFileFinderSupport;
import lombok.Delegate;
import lombok.Getter;
import lombok.ToString;
import lombok.extern.slf4j.Slf4j;

/***********************************************************************************************************************
 *
 * @author  Fabrizio Giudici
 * @version $Id$
 *
 **********************************************************************************************************************/
@Configurable
@Slf4j
@ToString(of = "delegate")
public class ResourceFileNetBeansPlatform implements ResourceFile {
    interface Exclusions {
        public String getName();

        public ResourcePath getPath();

        public ResourceFile getParent();

        public ResourceFile getFileObject(String fileName);

        public Collection<ResourceFile> getChildren();

        public Collection<ResourceFile> getChildren(boolean b);

        public String getMIMEType();

        public File toFile();

        public ResourceFile createFolder(String name);

        public void copyTo(ResourceFile targetFolder);

        public ResourceFileSystem getFileSystem();

        public Date lastModified();
    }

    @Inject
    private Provider<MimeTypeResolver> mimeTypeResolver;

    @Getter
    @Nonnull
    private final ResourceFileSystemNetBeansPlatform fileSystem;

    @Getter
    @Delegate(excludes = Exclusions.class)
    @Nonnull
    private final FileObject delegate;

    @Delegate
    private final As asSupport = new AsSupport(this);

    public ResourceFileNetBeansPlatform(final @Nonnull ResourceFileSystemNetBeansPlatform fileSystem,
            final @Nonnull FileObject delegate) {
        this.fileSystem = fileSystem;
        this.delegate = delegate;
    }

    @Override
    @Nonnull
    public ResourcePath getPath() {
        return new ResourcePath(delegate.getPath());
    }

    @Override
    @Nonnull
    public String getName() {
        return delegate.getNameExt();
    }

    @Override
    public ResourceFile getParent() {
        return fileSystem.createResourceFile(delegate.getParent());
    }

    @Override
    @Nonnull
    public ResourceFile createFolder(@Nonnull String name) throws IOException {
        return fileSystem.createResourceFile(delegate.createFolder(name));
    }

    @Override
    @Nonnull
    public Finder findChildren() {
        return ResourceFileFinderSupport.withComputeResults(getClass().getSimpleName(),
                new Function<Finder, List<ResourceFile>>() {
                    @Override
                    public List<ResourceFile> apply(final @Nonnull Finder f) {
                        final String name = f.getName();
                        final boolean recursive = f.isRecursive();

                        final List<ResourceFile> result = new ArrayList<>();

                        if (name != null) {
                            final FileObject child = delegate.getFileObject(name);

                            if (child != null) {
                                result.add(fileSystem.createResourceFile(child));
                            }
                        } else {
                            for (final FileObject child : Collections.list(delegate.getChildren(recursive))) {
                                result.add(fileSystem.createResourceFile(child));
                            }
                        }

                        return result;
                    }
                });
    }

    @Override
    @Nonnull
    public String getMimeType() {
        return mimeTypeResolver.get().getMimeType(delegate.getNameExt());
    }

    @Override
    @Nonnull
    public ZonedDateTime getLatestModificationTime() {
        // See NW-154
        final File file = toFile();

        final long millis = (file != null) ? file.lastModified() : delegate.lastModified().getTime();
        return Instant.ofEpochMilli(millis).atZone(ZoneId.of("GMT"));
    }

    @Override
    @CheckForNull
    public File toFile() {
        return FileUtil.toFile(delegate);
    }

    @Override
    public void copyTo(final @Nonnull ResourceFile targetFolder) throws IOException {
        FileUtil.copyFile(delegate, ((ResourceFileNetBeansPlatform) targetFolder).delegate, delegate.getName());
    }

    // TODO: equals and hashcode
}