com.brainardphotography.gravatar.GravatarProfileURL.java Source code

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Here is the source code for com.brainardphotography.gravatar.GravatarProfileURL.java

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/*
 * Copyright 2012 John Brainard
 *
 * 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.
 */
package com.brainardphotography.gravatar;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;

import com.brainardphotography.gravatar.GravatarProfileFormat.ContentType;
import com.brainardphotography.gravatar.contact.ContactLoader;
import com.brainardphotography.gravatar.contact.PCContact;
import com.brainardphotography.gravatar.contact.PCContactLoader;
import com.google.common.base.Joiner;
import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import com.google.common.io.ByteStreams;
import com.google.common.io.CharStreams;

public class GravatarProfileURL extends GravatarURL {
    private Optional<GravatarParameter> size = Optional.absent();

    public GravatarProfileURL(String email) {
        super(email);
    }

    public void setSize(Integer size) {
        Preconditions.checkNotNull(size, "'size' cannot be null");

        this.size = Optional.of(new GravatarParameter("s", size.toString()));
    }

    public String getText(GravatarProfileFormat format) throws IOException {
        if (format.getContentType() == ContentType.BINARY)
            throw new IllegalArgumentException("'getAsText' doesn't support BINARY content types.");

        URL url = toURL(format);

        try (InputStream input = url.openStream()) {
            return CharStreams.toString(new InputStreamReader(input));
        }
    }

    public PCContact getContact() throws IOException {
        URL url = toURL(GravatarProfileFormat.JSON);
        ContactLoader loader = PCContactLoader.getInstance();

        try (InputStream input = url.openStream()) {
            return loader.loadContact(new InputStreamReader(input));
        }
    }

    public byte[] getBytes(GravatarProfileFormat format) throws IOException {
        URL url = toURL(format);

        try (InputStream input = url.openStream()) {
            return ByteStreams.toByteArray(input);
        }
    }

    public String toString(GravatarProfileFormat format) {
        return Joiner.on("?").skipNulls()
                .join(new String[] { getBaseURL() + format.getExtension(), getQueryString() });
    }

    public URL toURL(GravatarProfileFormat format) {
        try {
            return new URL(toString(format));
        } catch (MalformedURLException ex) {
            // This shouldn't ever happen... If it does, it's a bug in the GravatarURL code
            // that needs to be reported.
            throw new RuntimeException("This is a fatal bug... Please report to the developer.", ex);
        }
    }

    @Override
    protected GravatarParameters getParameters() {
        return new GravatarParameters() {
            private static final long serialVersionUID = -3089034189638251230L;

            {
                add(size);
            }
        };
    }

    @Override
    protected String getBasePath() {
        return "";
    }
}