Package: handler_base

handler_base

name	instruction	branch	complexity	line	method
getData(ActivationDataFlavor, DataSource)	M: 4 C: 0 0%	M: 0 C: 0 100%	M: 1 C: 0 0%	M: 1 C: 0 0%	M: 1 C: 0 0%
getTransferData(ActivationDataFlavor, DataSource)	M: 26 C: 0 0%	M: 4 C: 0 0%	M: 3 C: 0 0%	M: 5 C: 0 0%	M: 1 C: 0 0%
getTransferDataFlavors()	M: 29 C: 0 0%	M: 2 C: 0 0%	M: 2 C: 0 0%	M: 6 C: 0 0%	M: 1 C: 0 0%
handler_base()	M: 3 C: 0 0%	M: 0 C: 0 100%	M: 1 C: 0 0%	M: 2 C: 0 0%	M: 1 C: 0 0%

Coverage

1: /*
2: * Copyright (c) 1997, 2023 Oracle and/or its affiliates. All rights reserved.
3: *
4: * This program and the accompanying materials are made available under the
5: * terms of the Eclipse Public License v. 2.0, which is available at
6: * http://www.eclipse.org/legal/epl-2.0.
7: *
8: * This Source Code may also be made available under the following Secondary
9: * Licenses when the conditions for such availability set forth in the
10: * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
11: * version 2 with the GNU Classpath Exception, which is available at
12: * https://www.gnu.org/software/classpath/license.html.
13: *
14: * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
15: */
16:
17: package org.eclipse.angus.mail.handlers;
18:
19: import jakarta.activation.ActivationDataFlavor;
20: import jakarta.activation.DataContentHandler;
21: import jakarta.activation.DataSource;
22:
23: import java.io.IOException;
24:
25: /**
26: * Base class for other DataContentHandlers.
27: */
28: public abstract class handler_base implements DataContentHandler {
29:
30: /**
31: * Creates a default {@code handler_base}.
32: */
33: public handler_base() {
34: }
35:
36: /**
37: * Return an array of ActivationDataFlavors that we support.
38: * Usually there will be only one.
39: *
40: * @return array of ActivationDataFlavors that we support
41: */
42: protected abstract ActivationDataFlavor[] getDataFlavors();
43:
44: /**
45: * Given the flavor that matched, return the appropriate type of object.
46: * Usually there's only one flavor so just call getContent.
47: *
48: * @param aFlavor the ActivationDataFlavor
49: * @param ds DataSource containing the data
50: * @return the object
51: * @exception IOException for errors reading the data
52: */
53: protected Object getData(ActivationDataFlavor aFlavor, DataSource ds)
54: throws IOException {
55: return getContent(ds);
56: }
57:
58: /**
59: * Return the ActivationDataFlavors for this <code>DataContentHandler</code>.
60: *
61: * @return The ActivationDataFlavors
62: */
63: @Override
64: public ActivationDataFlavor[] getTransferDataFlavors() {
65: ActivationDataFlavor[] adf = getDataFlavors();
66:• if (adf.length == 1) // the common case
67: return new ActivationDataFlavor[]{adf[0]};
68: ActivationDataFlavor[] df = new ActivationDataFlavor[adf.length];
69: System.arraycopy(adf, 0, df, 0, adf.length);
70: return df;
71: }
72:
73: /**
74: * Return the Transfer Data of type ActivationDataFlavor from InputStream.
75: *
76: * @param df The ActivationDataFlavor
77: * @param ds The DataSource corresponding to the data
78: * @return the object
79: * @exception IOException for errors reading the data
80: */
81: @Override
82: public Object getTransferData(ActivationDataFlavor df, DataSource ds)
83: throws IOException {
84: ActivationDataFlavor[] adf = getDataFlavors();
85:• for (int i = 0; i < adf.length; i++) {
86: // use ActivationDataFlavor.equals, which properly
87: // ignores Content-Type parameters in comparison
88:• if (adf[i].equals(df))
89: return getData(adf[i], ds);
90: }
91: return null;
92: }
93: }