| /**************************************************************** |
| * Licensed to the Apache Software Foundation (ASF) under one * |
| * or more contributor license agreements. See the NOTICE file * |
| * distributed with this work for additional information * |
| * regarding copyright ownership. The ASF licenses this file * |
| * to you 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. * |
| ****************************************************************/ |
| |
| package org.apache.jsieve.parser.address; |
| |
| import java.io.Reader; |
| import java.io.StringReader; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| |
| import org.apache.jsieve.mail.MailAdapter; |
| import org.apache.jsieve.mail.MailAdapter.Address; |
| import org.apache.jsieve.parser.generated.address.ASTaddr_spec; |
| import org.apache.jsieve.parser.generated.address.ASTaddress_list; |
| import org.apache.jsieve.parser.generated.address.ASTdomain; |
| import org.apache.jsieve.parser.generated.address.ASTlocal_part; |
| import org.apache.jsieve.parser.generated.address.AddressListParser; |
| import org.apache.jsieve.parser.generated.address.ParseException; |
| import org.apache.jsieve.parser.generated.address.Token; |
| |
| /** |
| * Builds <code>MailAdapter.Address</code> from address lists. Note that |
| * implementators of {@link MailAdapter} are recommended to use a fully featured |
| * and maintained parser such as <a href='http://james.apache.org/mime4j'>Apache |
| * Mime4J</a>. This implementation is based on Mime4J code but is intended only |
| * for internal and demonstration purposes. It is not actively maintained. |
| */ |
| public class SieveAddressBuilder { |
| |
| private static final Address[] EMPTY_ADDRESSES = {}; |
| |
| private final Collection<Address> addresses; |
| |
| private final Worker worker; |
| |
| public SieveAddressBuilder() { |
| addresses = Collections.synchronizedCollection(new ArrayList<Address>()); |
| worker = new Worker(); |
| } |
| |
| /** |
| * Clears the addresses currently accumulated. |
| */ |
| public void reset() { |
| addresses.clear(); |
| } |
| |
| /** |
| * Adds addresses in the given list. |
| * |
| * @param addressList |
| * RFC822 address list |
| * @throws ParseException |
| */ |
| public void addAddresses(String addressList) throws ParseException { |
| final StringReader reader = new StringReader(addressList); |
| worker.addAddressses(reader, addresses); |
| } |
| |
| /** |
| * Gets addresses currently accumulated by calls to |
| * {@link #addAddresses(String)} since the last call to {@link #reset}. |
| * |
| * @return addresses, not null |
| */ |
| public Address[] getAddresses() { |
| final Address[] results = (Address[]) addresses.toArray(EMPTY_ADDRESSES); |
| return results; |
| } |
| |
| /** |
| * Performs the actual work. Factored into an inner class so that the build |
| * interface is clean. |
| */ |
| private final class Worker extends BaseAddressListVisitor { |
| |
| public void addAddressses(final Reader reader, final Collection results) |
| throws ParseException { |
| AddressListParser parser = new AddressListParser(reader); |
| ASTaddress_list root = parser.parse(); |
| root.childrenAccept(this, results); |
| } |
| |
| @SuppressWarnings("unchecked") |
| public Object visit(ASTaddr_spec node, Object data) { |
| final AddressBean address = new AddressBean(); |
| node.childrenAccept(this, address); |
| if (data instanceof Collection) { |
| final Collection collection = (Collection) data; |
| collection.add(address); |
| } |
| return data; |
| } |
| |
| public Object visit(final ASTdomain node, final Object data) { |
| if (data instanceof AddressBean) { |
| final AddressBean address = (AddressBean) data; |
| final String domain = contents(node); |
| address.setDomain(domain); |
| } |
| return data; |
| } |
| |
| public Object visit(ASTlocal_part node, Object data) { |
| if (data instanceof AddressBean) { |
| final AddressBean address = (AddressBean) data; |
| final String localPart = contents(node); |
| address.setLocalPart(localPart); |
| } |
| return data; |
| } |
| |
| private String contents(AddressNode node) { |
| StringBuffer buffer = new StringBuffer(32); |
| Token last = node.lastToken; |
| Token next = node.firstToken; |
| while (next != last) { |
| buffer.append(next.image); |
| next = next.next; |
| } |
| buffer.append(last.image); |
| return buffer.toString(); |
| } |
| } |
| |
| /** |
| * Bean based address implementation. |
| */ |
| private final class AddressBean implements Address { |
| private String localPart; |
| |
| private String domain; |
| |
| public AddressBean() { |
| localPart = ""; |
| domain = ""; |
| } |
| |
| public String getDomain() { |
| return domain; |
| } |
| |
| public void setDomain(String domain) { |
| this.domain = domain; |
| } |
| |
| public String getLocalPart() { |
| return localPart; |
| } |
| |
| public void setLocalPart(String localPart) { |
| this.localPart = localPart; |
| } |
| } |
| } |