Java URI Value Check isHostDnsName(URI uri)

Description

Returns a boolean indicating whether the host of the specified URI is DNS.

License

Apache License

Parameter

Parameter	Description
uri	The URI whose host to evaluate.

Return

true if the host is DNS; otherwise, false.

Declaration

private static boolean isHostDnsName(URI uri) 

Method Source Code

//package com.java2s;
/**/*from   w w w  .j a v a2  s  .c o m*/
 * Copyright Microsoft Corporation
 * 
 * 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.net.URI;

public class Main {
    /**
     * Returns a boolean indicating whether the host of the specified URI is DNS.
     * 
     * @param uri
     *            The URI whose host to evaluate.
     * @return <code>true</code> if the host is DNS; otherwise, <code>false</code>.
     */
    private static boolean isHostDnsName(URI uri) {
        String host = uri.getHost();
        for (int i = 0; i < host.length(); i++) {
            char hostChar = host.charAt(i);
            if (!Character.isDigit(hostChar) && !(hostChar == '.')) {
                return true;
            }
        }
        return false;
    }
}

Related

1. isFileUri(String uri)
2. isFileURI(URI uri)
3. isFileURI(URI uri)
4. isFileUri(URI uri)
5. isFtp(URI uri)
6. isIRODSURIScheme(final URI irodsURI)
7. isJar(final URI uri)
8. isJarFile(final URI uri)
9. isLocal(final URI uri)