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/* |
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* Copyright (C) 2014, Matthias Sohn <matthias.sohn@sap.com> |
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* and other copyright owners as documented in the project's IP log. |
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* |
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* This program and the accompanying materials are made available |
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* under the terms of the Eclipse Distribution License v1.0 which |
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* accompanies this distribution, is reproduced below, and is |
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* available at http://www.eclipse.org/org/documents/edl-v10.php |
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* |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* - Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* - Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials provided |
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* with the distribution. |
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* |
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* - Neither the name of the Eclipse Foundation, Inc. nor the |
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* names of its contributors may be used to endorse or promote |
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* products derived from this software without specific prior |
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* written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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package org.eclipse.jgit.transport; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.List; |
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import org.eclipse.jgit.errors.UnsupportedCredentialItem; |
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/** |
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* A credentials provider chaining multiple credentials providers |
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* |
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* @since 3.5 |
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*/ |
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public class ChainingCredentialsProvider extends CredentialsProvider { |
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private List<CredentialsProvider> credentialProviders; |
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/** |
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* Create a new chaining credential provider. This provider tries to |
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* retrieve credentials from the chained credential providers in the order |
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* they are given here. If multiple providers support the requested items |
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* and have non-null credentials the first of them will be used. |
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* |
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* @param providers |
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* credential providers asked for credentials in the order given |
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* here |
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*/ |
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public ChainingCredentialsProvider(CredentialsProvider... providers) { |
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this.credentialProviders = new ArrayList<CredentialsProvider>( |
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Arrays.asList(providers)); |
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for (CredentialsProvider p : providers) |
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credentialProviders.add(p); |
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} |
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/** |
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* @return {@code true} if any of the credential providers in the list is |
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* interactive, otherwise {@code false} |
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* @see org.eclipse.jgit.transport.CredentialsProvider#isInteractive() |
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*/ |
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@Override |
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public boolean isInteractive() { |
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for (CredentialsProvider p : credentialProviders) |
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if (p.isInteractive()) |
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return true; |
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return false; |
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} |
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/** |
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* @return {@code true} if any of the credential providers in the list |
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* supports the requested items, otherwise {@code false} |
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* @see org.eclipse.jgit.transport.CredentialsProvider#supports(org.eclipse.jgit.transport.CredentialItem[]) |
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*/ |
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@Override |
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public boolean supports(CredentialItem... items) { |
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for (CredentialsProvider p : credentialProviders) |
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if (p.supports(items)) |
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return true; |
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return false; |
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} |
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/** |
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* Populates the credential items with the credentials provided by the first |
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* credential provider in the list which populates them with non-null values |
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* |
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* @return {@code true} if any of the credential providers in the list |
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* supports the requested items, otherwise {@code false} |
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* @see org.eclipse.jgit.transport.CredentialsProvider#supports(org.eclipse.jgit.transport.CredentialItem[]) |
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*/ |
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@Override |
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public boolean get(URIish uri, CredentialItem... items) |
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throws UnsupportedCredentialItem { |
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for (CredentialsProvider p : credentialProviders) { |
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if (p.supports(items)) { |
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p.get(uri, items); |
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if (isAnyNull(items)) |
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continue; |
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return true; |
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} |
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} |
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return false; |
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} |
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private boolean isAnyNull(CredentialItem... items) { |
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for (CredentialItem i : items) |
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if (i == null) |
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return true; |
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return false; |
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} |
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} |