From 62c4eb45e157d502463d797c1353802ca8e1e307 Mon Sep 17 00:00:00 2001
From: sg481n <sg481n@att.com>
Date: Fri, 25 Aug 2017 01:57:24 -0400
Subject: Update project structure for aaf/cadi

Update project structure from com.att to org.onap
and add distribution management and staging plugin.

Issue-id: AAF-22
Change-Id: Idf2b591139e38921ad28782a51486714a05dee92
Signed-off-by: sg481n <sg481n@att.com>
---
 .../java/org/onap/aaf/cadi/dme2/DME2Locator.java   | 349 +++++++++++++++++++++
 1 file changed, 349 insertions(+)
 create mode 100644 client/src/main/java/org/onap/aaf/cadi/dme2/DME2Locator.java

(limited to 'client/src/main/java/org/onap/aaf/cadi/dme2/DME2Locator.java')

diff --git a/client/src/main/java/org/onap/aaf/cadi/dme2/DME2Locator.java b/client/src/main/java/org/onap/aaf/cadi/dme2/DME2Locator.java
new file mode 100644
index 0000000..47af9ea
--- /dev/null
+++ b/client/src/main/java/org/onap/aaf/cadi/dme2/DME2Locator.java
@@ -0,0 +1,349 @@
+/*******************************************************************************
+ * ============LICENSE_START====================================================
+ * * org.onap.aaf
+ * * ===========================================================================
+ * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * * ===========================================================================
+ * * Licensed 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.
+ * * ============LICENSE_END====================================================
+ * *
+ * * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ * *
+ ******************************************************************************/
+package org.onap.aaf.cadi.dme2;
+
+
+import java.net.InetAddress;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.UnknownHostException;
+import java.util.Arrays;
+import java.util.Comparator;
+import java.util.Random;
+
+import org.onap.aaf.cadi.Access;
+import org.onap.aaf.cadi.Locator;
+import org.onap.aaf.cadi.LocatorException;
+import org.onap.aaf.cadi.Access.Level;
+
+//
+import com.att.aft.dme2.api.DME2Exception;
+import com.att.aft.dme2.api.DME2Manager;
+import com.att.aft.dme2.api.DME2Server;
+import com.att.aft.dme2.manager.registry.DME2Endpoint;
+
+public class DME2Locator implements Locator {
+	private DME2Manager dm;
+	private DME2Endpoint[] endpoints;
+	private Access access;
+	private String service;
+	private String version;
+	private String routeOffer;
+	private String envContext;
+	private String thisMachine;
+	private String pathInfo;
+	private int thisPort;
+	private boolean removeSelf;
+	private final static Random random = new Random();
+
+	// Default is to not bother trying to remove self
+	public DME2Locator(Access access, DME2Manager dm, String service, String version, String envContext, String routeOffer) throws DME2Exception, UnknownHostException, LocatorException {
+		this(access,dm,service,version,envContext,routeOffer,false);
+	}
+	
+	public DME2Locator(Access access, DME2Manager dm, String service, String version, String envContext, String routeOffer, boolean removeSelf) throws DME2Exception, UnknownHostException, LocatorException {
+		this.access = access;
+		if(dm==null) {
+			this.dm = new DME2Manager("DME2Locator created DME2Manager",System.getProperties());
+		} else {
+			this.dm = dm;
+		}
+		this.service = service;
+		this.version = version;
+		this.envContext = envContext;
+		this.routeOffer = routeOffer;
+		refresh();
+		DME2Server server = dm.getServer(); 
+		if(server == null) {
+			thisMachine = InetAddress.getLocalHost().getHostName();
+			thisPort = 0;
+		} else {
+			try {
+				thisMachine = server.getServerProperties().getHostname();
+				//thisPort = server.getPort();
+				thisPort = server.getServerProperties().getPort();
+			} catch(NullPointerException np) { // BAD BOY, DME2...
+				access.log(Level.ERROR, "WARNING: DME2 threw a NullPointer Exception getting Server Machine and Port");
+				thisMachine = InetAddress.getLocalHost().getHostName();
+				thisPort = 0;
+			}
+		}
+		this.removeSelf = removeSelf;
+	}
+
+	// Default is to not bother trying to remove self
+	public DME2Locator(Access access, DME2Manager dm, String aafurl) throws DME2Exception, UnknownHostException, LocatorException {
+		this(access,dm,aafurl,false);
+	}
+	
+	public DME2Locator(Access access, DME2Manager dm, String aafurl, boolean removeSelf) throws DME2Exception, UnknownHostException, LocatorException {
+		if(aafurl==null) throw new LocatorException("URL is null");
+		this.access = access;
+		if(dm==null) {
+			dm = this.dm = new DME2Manager("DME2Locator created DME2Manager",System.getProperties());
+		} else {
+			this.dm = dm;
+		}
+		String[] split = aafurl.split("/");
+		StringBuilder sb = new StringBuilder();
+		boolean dme2Entered = false;
+		for(String s : split) {
+			if(s.startsWith(     "service=")) this.service = s.substring(8);
+			else if(s.startsWith("version=")) this.version = s.substring(8);
+			else if(s.startsWith("envContext=")) this.envContext = s.substring(11);
+			else if(s.startsWith("routeOffer=")) {
+				this.routeOffer = s.substring(11);
+				dme2Entered = true;
+			}
+			else if(dme2Entered) {
+				sb.append('/');
+				sb.append(s);
+			}
+			pathInfo = sb.toString();
+		}
+		DME2Server server = dm.getServer(); 
+		if(server == null) {
+			thisMachine = InetAddress.getLocalHost().getHostName();
+			thisPort = 0;
+		} else {
+			thisMachine = server.getServerProperties().getHostname();
+			if(thisMachine==null) { // even if server !=null, apparently, it can be uninitialized
+				thisMachine = InetAddress.getLocalHost().getHostName();
+				thisPort = 0;
+			} else {
+				try {
+					thisPort = server.getServerProperties().getPort();
+				} catch (Exception e) {
+					thisPort = 0;
+				}
+			}			
+		}
+		this.removeSelf=removeSelf;
+		refresh();
+	}
+	
+	@Override
+	public boolean refresh() {
+		try {
+			dm.refresh();
+			endpoints = dm.findEndpoints(service, version, envContext, routeOffer, true);
+			if(removeSelf) {
+				for(int i=0;i<endpoints.length;++i) {
+					if(endpoints[i].getPort()==thisPort && endpoints[i].getHost().equals(thisMachine))
+						endpoints[i]=null;
+				}
+			}
+			return endpoints.length!=0;
+		} catch (Exception e) {
+			access.log(Level.ERROR, e.getMessage());
+		}
+		return false;
+	}
+
+	private String noEndpointsString() {
+		StringBuilder sb = new StringBuilder("No DME2 Endpoints found for ");
+		sb.append(service);
+		sb.append('/');
+		sb.append(version);
+		sb.append('/');
+		sb.append(envContext);
+		sb.append('/');
+		sb.append(routeOffer);
+		return sb.toString();
+	}
+
+	@Override
+	public URI get(Locator.Item item) throws LocatorException {
+		if(!hasItems()) 
+			throw new LocatorException(noEndpointsString());
+		if(item == null) 
+			return null;
+
+		Item li = ((Item)item);
+		// if URI has been created, use it
+		if(li.uri!=null)return li.uri;
+	
+		// URI not created, create it
+		if(li.idx<endpoints.length) {
+			DME2Endpoint de = endpoints[li.idx];
+			if(de!=null) {
+				try {
+					return li.uri=new URI(de.getProtocol(),null,de.getHost(),de.getPort(),pathInfo,null,null);
+				} catch (URISyntaxException e) {
+					throw new LocatorException(e);
+				}
+			}
+		}
+		return null;
+	}
+	
+	@Override
+	public boolean hasItems() {
+		return endpoints!=null && endpoints.length>0;
+	}
+
+	@Override
+	public void invalidate(Locator.Item item) throws LocatorException {
+		if(item instanceof Item) {
+			int idx = ((Item)item).idx;
+			if(idx<endpoints.length) {
+				DME2Endpoint uhoh = endpoints[idx]; // Sometimes, DME2Endpoint, at least on File system, returns bogus entries.
+				endpoints[idx]=null;
+				boolean noneLeft=true;
+				for(int i=0;i<endpoints.length && noneLeft;++i) {
+					noneLeft = endpoints[i]==null;
+				}
+				if(noneLeft && refresh()) { // make sure DME2 isn't giving us the same invalidated entry...
+					for(int i=0;i<endpoints.length && noneLeft;++i) {
+						DME2Endpoint ep = endpoints[i];
+						if(ep != null && 
+						   ep.getHost().equals(uhoh.getHost()) &&
+						   ep.getPort()==uhoh.getPort()) {
+							 endpoints[i]=null;
+						}
+					}
+				}
+				
+			}
+		}
+	}
+
+	public class Item implements Locator.Item {
+		private final int idx;
+		private URI uri;
+		private Item(int i) {
+			idx = i;
+			uri = null;
+		}
+	}
+
+	@Override
+	public Item best() throws LocatorException {
+		if(!hasItems()) // checks endpoints
+			if(!refresh()) throw new LocatorException("No DME2 Endpoints Available");
+		
+		// Some endpoints in Array are null.  Need sub array of usable endpoints
+		int usable[] = new int[endpoints.length];
+		int count=0;
+		for(int i=0;i<endpoints.length;++i) {
+			if(endpoints[i]!=null) {
+				usable[count++] = i;
+			}
+		}
+		switch(count) {
+			case 0: refresh(); return null;
+			case 1: return new Item(usable[0]);
+			default:
+				int samemach[] = new int[count];
+				int samecount = 0,closecount=0;
+				// has to be sortable
+				Integer closemach[] = new Integer[count];
+				
+				// Analyze for Same Machine or Remote machines
+				for(int i=0;i<count;++i) {
+					DME2Endpoint ep = endpoints[usable[i]];
+					String host = ep.getHost();
+					if(thisMachine.equalsIgnoreCase(host)) {
+						samemach[samecount++] = usable[i];
+					} else {
+						closemach[closecount++] = usable[i];
+					}
+				}
+				
+				switch(samecount) {
+					case 0: break;
+					case 1: return new Item(samemach[0]);
+					default: // return randomized is multiple Endpoints on local machine.
+						int i = random.nextInt();
+						return new Item(usable[Math.abs(i%samecount)]);
+				}
+				
+				// Analyze for closest remote
+				switch(closecount) {
+					case 0:	return null;
+					case 1: return new Item(closemach[0]);
+					default: // return closest machine
+						DoubIndex remote[] = new DoubIndex[closecount];
+						int remotecount = 0;
+						for(int i=0;i<closecount;++i) {
+							DME2Endpoint de = endpoints[usable[i]];
+							remote[remotecount++] = new DoubIndex(de.getDistance(),i);
+						}
+						Arrays.sort(remote,new Comparator<DoubIndex> () {
+							@Override
+							public int compare(DoubIndex a, DoubIndex b) {
+								if(a.d<b.d) return -1;
+								if(a.d>b.d) return 1;
+								return (random.nextInt()%1)==0?1:0;// randomize if the same
+							}
+							
+						});
+						return new Item(remote[0].idx);
+				}
+		}
+	}
+	
+	private class DoubIndex {
+		public final double d;
+		public final int idx;
+		
+		public DoubIndex(double doub, int i) {
+			d = doub;
+			idx = i;
+		}
+	}
+	@Override
+	public Item first() {
+		if(endpoints==null)return null;
+		for(int i=0;i<endpoints.length;++i) {
+			if(endpoints[i]!=null)
+				return new Item(i); 
+		}
+		return null;
+	}
+
+	@Override
+	public Item next(Locator.Item item) throws LocatorException {
+		if(endpoints==null || endpoints.length==0 || !(item instanceof Item))return null;
+		int idx = ((Item)item).idx +1;
+		for(int i=idx;i<endpoints.length;++i) {
+			if(endpoints[i]!=null)
+				return new Item(i); 
+		}
+// This is a mistake..  will start infinite loops
+//		// Did not have any at end... try beginning
+//		for(int i=0;i<idx-1;++i) {
+//			if(endpoints[i]!=null)
+//				return new Item(i); 
+//		}
+//		// If still nothing, refresh
+//		refresh();
+		return null;
+	}
+
+	@Override
+	public void destroy() {
+		// TODO Auto-generated method stub
+		
+	}
+}
-- 
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