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270 lines
8.1 KiB
270 lines
8.1 KiB
/*
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* Copyright (c) 2004, 2012, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package javax.xml.soap;
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import java.util.Iterator;
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import java.util.Vector;
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/**
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* A container for <code>MimeHeader</code> objects, which represent
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* the MIME headers present in a MIME part of a message.
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*
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* <p>This class is used primarily when an application wants to
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* retrieve specific attachments based on certain MIME headers and
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* values. This class will most likely be used by implementations of
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* <code>AttachmentPart</code> and other MIME dependent parts of the SAAJ
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* API.
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* @see SOAPMessage#getAttachments
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* @see AttachmentPart
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*/
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public class MimeHeaders {
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private Vector headers;
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/**
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* Constructs a default <code>MimeHeaders</code> object initialized with
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* an empty <code>Vector</code> object.
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*/
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public MimeHeaders() {
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headers = new Vector();
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}
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/**
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* Returns all of the values for the specified header as an array of
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* <code>String</code> objects.
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*
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* @param name the name of the header for which values will be returned
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* @return a <code>String</code> array with all of the values for the
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* specified header
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* @see #setHeader
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*/
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public String[] getHeader(String name) {
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Vector values = new Vector();
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for(int i = 0; i < headers.size(); i++) {
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MimeHeader hdr = (MimeHeader) headers.elementAt(i);
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if (hdr.getName().equalsIgnoreCase(name)
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&& hdr.getValue() != null)
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values.addElement(hdr.getValue());
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}
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if (values.size() == 0)
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return null;
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String r[] = new String[values.size()];
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values.copyInto(r);
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return r;
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}
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/**
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* Replaces the current value of the first header entry whose name matches
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* the given name with the given value, adding a new header if no existing header
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* name matches. This method also removes all matching headers after the first one.
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* <P>
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* Note that RFC822 headers can contain only US-ASCII characters.
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*
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* @param name a <code>String</code> with the name of the header for
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* which to search
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* @param value a <code>String</code> with the value that will replace the
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* current value of the specified header
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*
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* @exception IllegalArgumentException if there was a problem in the
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* mime header name or the value being set
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* @see #getHeader
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*/
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public void setHeader(String name, String value)
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{
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boolean found = false;
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if ((name == null) || name.equals(""))
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throw new IllegalArgumentException("Illegal MimeHeader name");
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for(int i = 0; i < headers.size(); i++) {
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MimeHeader hdr = (MimeHeader) headers.elementAt(i);
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if (hdr.getName().equalsIgnoreCase(name)) {
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if (!found) {
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headers.setElementAt(new MimeHeader(hdr.getName(),
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value), i);
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found = true;
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}
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else
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headers.removeElementAt(i--);
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}
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}
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if (!found)
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addHeader(name, value);
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}
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/**
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* Adds a <code>MimeHeader</code> object with the specified name and value
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* to this <code>MimeHeaders</code> object's list of headers.
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* <P>
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* Note that RFC822 headers can contain only US-ASCII characters.
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*
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* @param name a <code>String</code> with the name of the header to
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* be added
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* @param value a <code>String</code> with the value of the header to
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* be added
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*
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* @exception IllegalArgumentException if there was a problem in the
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* mime header name or value being added
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*/
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public void addHeader(String name, String value)
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{
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if ((name == null) || name.equals(""))
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throw new IllegalArgumentException("Illegal MimeHeader name");
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int pos = headers.size();
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for(int i = pos - 1 ; i >= 0; i--) {
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MimeHeader hdr = (MimeHeader) headers.elementAt(i);
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if (hdr.getName().equalsIgnoreCase(name)) {
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headers.insertElementAt(new MimeHeader(name, value),
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i+1);
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return;
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}
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}
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headers.addElement(new MimeHeader(name, value));
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}
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/**
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* Remove all <code>MimeHeader</code> objects whose name matches the
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* given name.
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*
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* @param name a <code>String</code> with the name of the header for
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* which to search
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*/
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public void removeHeader(String name) {
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for(int i = 0; i < headers.size(); i++) {
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MimeHeader hdr = (MimeHeader) headers.elementAt(i);
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if (hdr.getName().equalsIgnoreCase(name))
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headers.removeElementAt(i--);
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}
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}
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/**
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* Removes all the header entries from this <code>MimeHeaders</code> object.
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*/
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public void removeAllHeaders() {
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headers.removeAllElements();
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}
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/**
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* Returns all the <code>MimeHeader</code>s in this <code>MimeHeaders</code> object.
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*
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* @return an <code>Iterator</code> object over this <code>MimeHeaders</code>
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* object's list of <code>MimeHeader</code> objects
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*/
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public Iterator getAllHeaders() {
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return headers.iterator();
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}
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class MatchingIterator implements Iterator {
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private boolean match;
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private Iterator iterator;
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private String[] names;
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private Object nextHeader;
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MatchingIterator(String[] names, boolean match) {
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this.match = match;
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this.names = names;
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this.iterator = headers.iterator();
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}
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private Object nextMatch() {
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next:
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while (iterator.hasNext()) {
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MimeHeader hdr = (MimeHeader) iterator.next();
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if (names == null)
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return match ? null : hdr;
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for(int i = 0; i < names.length; i++)
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if (hdr.getName().equalsIgnoreCase(names[i]))
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if (match)
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return hdr;
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else
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continue next;
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if (!match)
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return hdr;
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}
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return null;
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}
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public boolean hasNext() {
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if (nextHeader == null)
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nextHeader = nextMatch();
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return nextHeader != null;
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}
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public Object next() {
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// hasNext should've prefetched the header for us,
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// return it.
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if (nextHeader != null) {
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Object ret = nextHeader;
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nextHeader = null;
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return ret;
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}
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if (hasNext())
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return nextHeader;
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return null;
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}
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public void remove() {
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iterator.remove();
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}
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}
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/**
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* Returns all the <code>MimeHeader</code> objects whose name matches
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* a name in the given array of names.
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*
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* @param names an array of <code>String</code> objects with the names
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* for which to search
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* @return an <code>Iterator</code> object over the <code>MimeHeader</code>
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* objects whose name matches one of the names in the given list
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*/
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public Iterator getMatchingHeaders(String[] names) {
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return new MatchingIterator(names, true);
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}
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/**
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* Returns all of the <code>MimeHeader</code> objects whose name does not
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* match a name in the given array of names.
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*
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* @param names an array of <code>String</code> objects with the names
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* for which to search
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* @return an <code>Iterator</code> object over the <code>MimeHeader</code>
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* objects whose name does not match one of the names in the given list
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*/
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public Iterator getNonMatchingHeaders(String[] names) {
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return new MatchingIterator(names, false);
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}
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}
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