Java URI from toURI(String location)

Description

to URI

License

Apache License

Declaration

public static URI toURI(String location) throws URISyntaxException 

Method Source Code

//package com.java2s;
/*//from   w  ww.j a v a  2s. c  om
 * Copyright 2010 Red Hat, Inc. and/or its affiliates.
 *
 * 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.
 */

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;

import java.net.URI;
import java.net.URISyntaxException;

import static java.lang.Character.isWhitespace;

public class Main {
    public static URI toURI(String location) throws URISyntaxException {
        return new URI(replace(location, " ", "%20"));
    }

    /**
     * Replace all occurences of a substring within a string with
     * another string.
     * @param inString String to examine
     * @param oldPattern String to replace
     * @param newPattern String to insert
     * @return a String with the replacements
     * 
     * Borrowed from Spring, under the ASL2.0 license.
     */
    public static String replace(String inString, String oldPattern, String newPattern) {
        if (isEmpty(inString) || isEmpty(oldPattern) || newPattern == null) {
            return inString;
        }
        StringBuilder sbuf = new StringBuilder();
        // output StringBuilder we'll build up
        int pos = 0; // our position in the old string
        int index = inString.indexOf(oldPattern);
        // the index of an occurrence we've found, or -1
        int patLen = oldPattern.length();
        while (index >= 0) {
            sbuf.append(inString.substring(pos, index));
            sbuf.append(newPattern);
            pos = index + patLen;
            index = inString.indexOf(oldPattern, pos);
        }
        sbuf.append(inString.substring(pos));
        // remember to append any characters to the right of a match
        return sbuf.toString();
    }

    /**
     * <p>Checks if a String is empty ("") or null.</p>
     *
     * <pre>
     * StringUtils.isEmpty(null)      = true
     * StringUtils.isEmpty("")        = true
     * StringUtils.isEmpty(" ")       = false
     * StringUtils.isEmpty("bob")     = false
     * StringUtils.isEmpty("  bob  ") = false
     * </pre>
     *
     * <p>NOTE: This method changed in Lang version 2.0.
     * It no longer trims the String.
     * That functionality is available in isBlank().</p>
     *
     * @param str  the String to check, may be null
     * @return <code>true</code> if the String is empty or null
     */
    public static boolean isEmpty(final CharSequence str) {
        if (str == null || str.length() == 0) {
            return true;
        }

        for (int i = 0, length = str.length(); i < length; i++) {
            if (!isWhitespace(str.charAt(i))) {
                return false;
            }
        }

        return true;
    }

    public static String toString(Reader reader) throws IOException {
        if (reader instanceof BufferedReader) {
            return toString((BufferedReader) reader);
        } else {
            return toString(new BufferedReader(reader));
        }
    }

    public static String toString(InputStream is) throws IOException {
        return toString(new BufferedReader(new InputStreamReader(is, "UTF-8")));
    }

    public static String toString(BufferedReader reader) throws IOException {
        StringBuilder sb = new StringBuilder();
        try {
            String line;
            boolean previousLine = false;
            while ((line = reader.readLine()) != null) {
                if (previousLine) {
                    sb.append("\n");
                }
                sb.append(line);
                previousLine = true;
            }
        } finally {
            reader.close();
        }
        return sb.toString();
    }
}

Related

1. toUri(java.io.File file)
2. toUri(String endpoint, Protocol protocol)
3. toUri(String ip, String path)
4. toURI(String location)
5. toURI(String location)
6. toURI(String location)
7. toURI(String location)
8. toURI(String path)
9. toUri(String path)