Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2014 Chris Banes
 *
 * 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.
 */

public class Main {
    private static final String mTmdbBaseUrl = "http://image.tmdb.org/t/p/";
    private static final int[] mTmdbPosterSizes = { 92, 154, 185, 342, 500, 780 };

    private static String buildTmdbPosterUrl(String imageUrl, int width, boolean forceLarger) {
        if (mTmdbBaseUrl != null && mTmdbPosterSizes != null) {
            return buildTmdbUrl(mTmdbBaseUrl, imageUrl, selectSize(width, mTmdbPosterSizes, forceLarger));
        } else {
            return null;
        }
    }

    private static String buildTmdbUrl(String baseUrl, String imagePath, int width) {
        StringBuilder url = new StringBuilder(baseUrl);
        if (width == Integer.MAX_VALUE) {
            url.append("original");
        } else {
            url.append('w').append(width);
        }
        url.append(imagePath);
        return url.toString();
    }

    private static int selectSize(final int width, final int[] widths, final boolean forceLarger) {
        int previousBucketWidth = 0;

        for (int i = 0; i < widths.length; i++) {
            final int currentBucketWidth = widths[i];

            if (width < currentBucketWidth) {
                if (forceLarger || previousBucketWidth != 0) {
                    // We're in between this and the previous bucket
                    final int bucketDiff = currentBucketWidth - previousBucketWidth;
                    if (width < previousBucketWidth + (bucketDiff / 2)) {
                        return previousBucketWidth;
                    } else {
                        return currentBucketWidth;
                    }
                } else {
                    return currentBucketWidth;
                }
            } else if (i == widths.length - 1) {
                // If we get here then we're larger than a bucket
                if (width < currentBucketWidth * 2) {
                    return currentBucketWidth;
                }
            }

            previousBucketWidth = currentBucketWidth;
        }
        return Integer.MAX_VALUE;
    }
}