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authorSam Whited <sam@samwhited.com>2014-10-22 15:44:55 -0400
committerSam Whited <sam@samwhited.com>2014-10-22 15:47:11 -0400
commit281ce3105fad5f012471cf3e5062a4032dfbc7a6 (patch)
tree63f9e37c2104609a9ace4724b5e10c3539a7feb4 /src/main/java/eu/siacs/conversations/xml
parent07b47172a08c01c248c6f69bae48d9e60695a14b (diff)
Make conversations the root project
Diffstat (limited to 'src/main/java/eu/siacs/conversations/xml')
-rw-r--r--src/main/java/eu/siacs/conversations/xml/Element.java148
-rw-r--r--src/main/java/eu/siacs/conversations/xml/Tag.java104
-rw-r--r--src/main/java/eu/siacs/conversations/xml/TagWriter.java114
-rw-r--r--src/main/java/eu/siacs/conversations/xml/XmlReader.java141
4 files changed, 507 insertions, 0 deletions
diff --git a/src/main/java/eu/siacs/conversations/xml/Element.java b/src/main/java/eu/siacs/conversations/xml/Element.java
new file mode 100644
index 000000000..4e11ee2cd
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/xml/Element.java
@@ -0,0 +1,148 @@
+package eu.siacs.conversations.xml;
+
+import java.util.ArrayList;
+import java.util.Hashtable;
+import java.util.List;
+
+import eu.siacs.conversations.utils.XmlHelper;
+
+public class Element {
+ protected String name;
+ protected Hashtable<String, String> attributes = new Hashtable<String, String>();
+ protected String content;
+ protected List<Element> children = new ArrayList<Element>();
+
+ public Element(String name) {
+ this.name = name;
+ }
+
+ public Element addChild(Element child) {
+ this.content = null;
+ children.add(child);
+ return child;
+ }
+
+ public Element addChild(String name) {
+ this.content = null;
+ Element child = new Element(name);
+ children.add(child);
+ return child;
+ }
+
+ public Element addChild(String name, String xmlns) {
+ this.content = null;
+ Element child = new Element(name);
+ child.setAttribute("xmlns", xmlns);
+ children.add(child);
+ return child;
+ }
+
+ public Element setContent(String content) {
+ this.content = content;
+ this.children.clear();
+ return this;
+ }
+
+ public Element findChild(String name) {
+ for (Element child : this.children) {
+ if (child.getName().equals(name)) {
+ return child;
+ }
+ }
+ return null;
+ }
+
+ public Element findChild(String name, String xmlns) {
+ for (Element child : this.children) {
+ if (child.getName().equals(name)
+ && (child.getAttribute("xmlns").equals(xmlns))) {
+ return child;
+ }
+ }
+ return null;
+ }
+
+ public boolean hasChild(String name) {
+ return findChild(name) != null;
+ }
+
+ public boolean hasChild(String name, String xmlns) {
+ return findChild(name, xmlns) != null;
+ }
+
+ public List<Element> getChildren() {
+ return this.children;
+ }
+
+ public Element setChildren(List<Element> children) {
+ this.children = children;
+ return this;
+ }
+
+ public String getContent() {
+ return content;
+ }
+
+ public Element setAttribute(String name, String value) {
+ if (name != null && value != null) {
+ this.attributes.put(name, value);
+ }
+ return this;
+ }
+
+ public Element setAttributes(Hashtable<String, String> attributes) {
+ this.attributes = attributes;
+ return this;
+ }
+
+ public String getAttribute(String name) {
+ if (this.attributes.containsKey(name)) {
+ return this.attributes.get(name);
+ } else {
+ return null;
+ }
+ }
+
+ public Hashtable<String, String> getAttributes() {
+ return this.attributes;
+ }
+
+ public String toString() {
+ StringBuilder elementOutput = new StringBuilder();
+ if ((content == null) && (children.size() == 0)) {
+ Tag emptyTag = Tag.empty(name);
+ emptyTag.setAtttributes(this.attributes);
+ elementOutput.append(emptyTag.toString());
+ } else {
+ Tag startTag = Tag.start(name);
+ startTag.setAtttributes(this.attributes);
+ elementOutput.append(startTag);
+ if (content != null) {
+ elementOutput.append(XmlHelper.encodeEntities(content));
+ } else {
+ for (Element child : children) {
+ elementOutput.append(child.toString());
+ }
+ }
+ Tag endTag = Tag.end(name);
+ elementOutput.append(endTag);
+ }
+ return elementOutput.toString();
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public void clearChildren() {
+ this.children.clear();
+ }
+
+ public void setAttribute(String name, long value) {
+ this.setAttribute(name, Long.toString(value));
+ }
+
+ public void setAttribute(String name, int value) {
+ this.setAttribute(name, Integer.toString(value));
+ }
+}
diff --git a/src/main/java/eu/siacs/conversations/xml/Tag.java b/src/main/java/eu/siacs/conversations/xml/Tag.java
new file mode 100644
index 000000000..b9ef979ff
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/xml/Tag.java
@@ -0,0 +1,104 @@
+package eu.siacs.conversations.xml;
+
+import java.util.Hashtable;
+import java.util.Iterator;
+import java.util.Map.Entry;
+import java.util.Set;
+
+import eu.siacs.conversations.utils.XmlHelper;
+
+public class Tag {
+ public static final int NO = -1;
+ public static final int START = 0;
+ public static final int END = 1;
+ public static final int EMPTY = 2;
+
+ protected int type;
+ protected String name;
+ protected Hashtable<String, String> attributes = new Hashtable<String, String>();
+
+ protected Tag(int type, String name) {
+ this.type = type;
+ this.name = name;
+ }
+
+ public static Tag no(String text) {
+ return new Tag(NO, text);
+ }
+
+ public static Tag start(String name) {
+ return new Tag(START, name);
+ }
+
+ public static Tag end(String name) {
+ return new Tag(END, name);
+ }
+
+ public static Tag empty(String name) {
+ return new Tag(EMPTY, name);
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public String getAttribute(String attrName) {
+ return this.attributes.get(attrName);
+ }
+
+ public Tag setAttribute(String attrName, String attrValue) {
+ this.attributes.put(attrName, attrValue);
+ return this;
+ }
+
+ public Tag setAtttributes(Hashtable<String, String> attributes) {
+ this.attributes = attributes;
+ return this;
+ }
+
+ public boolean isStart(String needle) {
+ if (needle == null)
+ return false;
+ return (this.type == START) && (needle.equals(this.name));
+ }
+
+ public boolean isEnd(String needle) {
+ if (needle == null)
+ return false;
+ return (this.type == END) && (needle.equals(this.name));
+ }
+
+ public boolean isNo() {
+ return (this.type == NO);
+ }
+
+ public String toString() {
+ StringBuilder tagOutput = new StringBuilder();
+ tagOutput.append('<');
+ if (type == END) {
+ tagOutput.append('/');
+ }
+ tagOutput.append(name);
+ if (type != END) {
+ Set<Entry<String, String>> attributeSet = attributes.entrySet();
+ Iterator<Entry<String, String>> it = attributeSet.iterator();
+ while (it.hasNext()) {
+ Entry<String, String> entry = it.next();
+ tagOutput.append(' ');
+ tagOutput.append(entry.getKey());
+ tagOutput.append("=\"");
+ tagOutput.append(XmlHelper.encodeEntities(entry.getValue()));
+ tagOutput.append('"');
+ }
+ }
+ if (type == EMPTY) {
+ tagOutput.append('/');
+ }
+ tagOutput.append('>');
+ return tagOutput.toString();
+ }
+
+ public Hashtable<String, String> getAttributes() {
+ return this.attributes;
+ }
+}
diff --git a/src/main/java/eu/siacs/conversations/xml/TagWriter.java b/src/main/java/eu/siacs/conversations/xml/TagWriter.java
new file mode 100644
index 000000000..f11c18464
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/xml/TagWriter.java
@@ -0,0 +1,114 @@
+package eu.siacs.conversations.xml;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.util.concurrent.LinkedBlockingQueue;
+
+import eu.siacs.conversations.xmpp.stanzas.AbstractStanza;
+
+public class TagWriter {
+
+ private OutputStream plainOutputStream;
+ private OutputStreamWriter outputStream;
+ private boolean finshed = false;
+ private LinkedBlockingQueue<AbstractStanza> writeQueue = new LinkedBlockingQueue<AbstractStanza>();
+ private Thread asyncStanzaWriter = new Thread() {
+ private boolean shouldStop = false;
+
+ @Override
+ public void run() {
+ while (!shouldStop) {
+ if ((finshed) && (writeQueue.size() == 0)) {
+ return;
+ }
+ try {
+ AbstractStanza output = writeQueue.take();
+ if (outputStream == null) {
+ shouldStop = true;
+ } else {
+ outputStream.write(output.toString());
+ outputStream.flush();
+ }
+ } catch (IOException e) {
+ shouldStop = true;
+ } catch (InterruptedException e) {
+ shouldStop = true;
+ }
+ }
+ }
+ };
+
+ public TagWriter() {
+ }
+
+ public void setOutputStream(OutputStream out) throws IOException {
+ if (out == null) {
+ throw new IOException();
+ }
+ this.plainOutputStream = out;
+ this.outputStream = new OutputStreamWriter(out);
+ }
+
+ public OutputStream getOutputStream() throws IOException {
+ if (this.plainOutputStream == null) {
+ throw new IOException();
+ }
+ return this.plainOutputStream;
+ }
+
+ public TagWriter beginDocument() throws IOException {
+ if (outputStream == null) {
+ throw new IOException("output stream was null");
+ }
+ outputStream.write("<?xml version='1.0'?>");
+ outputStream.flush();
+ return this;
+ }
+
+ public TagWriter writeTag(Tag tag) throws IOException {
+ if (outputStream == null) {
+ throw new IOException("output stream was null");
+ }
+ outputStream.write(tag.toString());
+ outputStream.flush();
+ return this;
+ }
+
+ public TagWriter writeElement(Element element) throws IOException {
+ if (outputStream == null) {
+ throw new IOException("output stream was null");
+ }
+ outputStream.write(element.toString());
+ outputStream.flush();
+ return this;
+ }
+
+ public TagWriter writeStanzaAsync(AbstractStanza stanza) {
+ if (finshed) {
+ return this;
+ } else {
+ if (!asyncStanzaWriter.isAlive()) {
+ try {
+ asyncStanzaWriter.start();
+ } catch (IllegalThreadStateException e) {
+ // already started
+ }
+ }
+ writeQueue.add(stanza);
+ return this;
+ }
+ }
+
+ public void finish() {
+ this.finshed = true;
+ }
+
+ public boolean finished() {
+ return (this.writeQueue.size() == 0);
+ }
+
+ public boolean isActive() {
+ return outputStream != null;
+ }
+}
diff --git a/src/main/java/eu/siacs/conversations/xml/XmlReader.java b/src/main/java/eu/siacs/conversations/xml/XmlReader.java
new file mode 100644
index 000000000..52d3d46ac
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/xml/XmlReader.java
@@ -0,0 +1,141 @@
+package eu.siacs.conversations.xml;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
+import eu.siacs.conversations.Config;
+
+import android.os.PowerManager;
+import android.os.PowerManager.WakeLock;
+import android.util.Log;
+import android.util.Xml;
+
+public class XmlReader {
+ private XmlPullParser parser;
+ private PowerManager.WakeLock wakeLock;
+ private InputStream is;
+
+ public XmlReader(WakeLock wakeLock) {
+ this.parser = Xml.newPullParser();
+ try {
+ this.parser.setFeature(XmlPullParser.FEATURE_PROCESS_NAMESPACES,
+ true);
+ } catch (XmlPullParserException e) {
+ Log.d(Config.LOGTAG, "error setting namespace feature on parser");
+ }
+ this.wakeLock = wakeLock;
+ }
+
+ public void setInputStream(InputStream inputStream) throws IOException {
+ if (inputStream == null) {
+ throw new IOException();
+ }
+ this.is = inputStream;
+ try {
+ parser.setInput(new InputStreamReader(this.is));
+ } catch (XmlPullParserException e) {
+ throw new IOException("error resetting parser");
+ }
+ }
+
+ public InputStream getInputStream() throws IOException {
+ if (this.is == null) {
+ throw new IOException();
+ }
+ return is;
+ }
+
+ public void reset() throws IOException {
+ if (this.is == null) {
+ throw new IOException();
+ }
+ try {
+ parser.setInput(new InputStreamReader(this.is));
+ } catch (XmlPullParserException e) {
+ throw new IOException("error resetting parser");
+ }
+ }
+
+ public Tag readTag() throws XmlPullParserException, IOException {
+ if (wakeLock.isHeld()) {
+ try {
+ wakeLock.release();
+ } catch (RuntimeException re) {
+ }
+ }
+ try {
+ while (this.is != null
+ && parser.next() != XmlPullParser.END_DOCUMENT) {
+ wakeLock.acquire();
+ if (parser.getEventType() == XmlPullParser.START_TAG) {
+ Tag tag = Tag.start(parser.getName());
+ for (int i = 0; i < parser.getAttributeCount(); ++i) {
+ tag.setAttribute(parser.getAttributeName(i),
+ parser.getAttributeValue(i));
+ }
+ String xmlns = parser.getNamespace();
+ if (xmlns != null) {
+ tag.setAttribute("xmlns", xmlns);
+ }
+ return tag;
+ } else if (parser.getEventType() == XmlPullParser.END_TAG) {
+ Tag tag = Tag.end(parser.getName());
+ return tag;
+ } else if (parser.getEventType() == XmlPullParser.TEXT) {
+ Tag tag = Tag.no(parser.getText());
+ return tag;
+ }
+ }
+ if (wakeLock.isHeld()) {
+ try {
+ wakeLock.release();
+ } catch (RuntimeException re) {
+ }
+ }
+ } catch (ArrayIndexOutOfBoundsException e) {
+ throw new IOException(
+ "xml parser mishandled ArrayIndexOufOfBounds", e);
+ } catch (StringIndexOutOfBoundsException e) {
+ throw new IOException(
+ "xml parser mishandled StringIndexOufOfBounds", e);
+ } catch (NullPointerException e) {
+ throw new IOException("xml parser mishandled NullPointerException",
+ e);
+ } catch (IndexOutOfBoundsException e) {
+ throw new IOException("xml parser mishandled IndexOutOfBound", e);
+ }
+ return null;
+ }
+
+ public Element readElement(Tag currentTag) throws XmlPullParserException,
+ IOException {
+ Element element = new Element(currentTag.getName());
+ element.setAttributes(currentTag.getAttributes());
+ Tag nextTag = this.readTag();
+ if (nextTag == null) {
+ throw new IOException("unterupted mid tag");
+ }
+ if (nextTag.isNo()) {
+ element.setContent(nextTag.getName());
+ nextTag = this.readTag();
+ if (nextTag == null) {
+ throw new IOException("unterupted mid tag");
+ }
+ }
+ while (!nextTag.isEnd(element.getName())) {
+ if (!nextTag.isNo()) {
+ Element child = this.readElement(nextTag);
+ element.addChild(child);
+ }
+ nextTag = this.readTag();
+ if (nextTag == null) {
+ throw new IOException("unterupted mid tag");
+ }
+ }
+ return element;
+ }
+}