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From rajdav...@apache.org
Subject svn commit: r503176 [2/2] - in /activemq/trunk/activemq-core/src: main/java/org/apache/activemq/kaha/ main/java/org/apache/activemq/kaha/impl/ main/java/org/apache/activemq/kaha/impl/container/ main/java/org/apache/activemq/kaha/impl/index/ main/java/o...
Date Sat, 03 Feb 2007 06:54:00 GMT
Added: activemq/trunk/activemq-core/src/main/java/org/apache/activemq/kaha/impl/index/tree/TreePage.java
URL: http://svn.apache.org/viewvc/activemq/trunk/activemq-core/src/main/java/org/apache/activemq/kaha/impl/index/tree/TreePage.java?view=auto&rev=503176
==============================================================================
--- activemq/trunk/activemq-core/src/main/java/org/apache/activemq/kaha/impl/index/tree/TreePage.java
(added)
+++ activemq/trunk/activemq-core/src/main/java/org/apache/activemq/kaha/impl/index/tree/TreePage.java
Fri Feb  2 22:53:59 2007
@@ -0,0 +1,742 @@
+/**
+ * 
+ * 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.activemq.kaha.impl.index.tree;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import org.apache.activemq.kaha.Marshaller;
+
+/**
+ * Page in a BTree
+ * 
+ * @version $Revision: 1.1.1.1 $
+ */
+class TreePage{
+
+    static final int PAGE_HEADER_SIZE=18;
+
+    static enum Flavour{
+        LESS,MORE
+    }
+    private TreeIndex tree;
+    private int maximumEntries;
+    private long id;
+    private long parentId=TreeEntry.NOT_SET;
+    private boolean leaf=true;
+    private List<TreeEntry> treeEntries;
+    /*
+     * for persistence only
+     */
+    private long nextFreePageId=TreeEntry.NOT_SET;
+    private boolean active=true;
+
+    /**
+     * Constructor
+     * 
+     * @param tree
+     * @param id
+     * @param parentId
+     * @param maximumEntries
+     */
+    TreePage(TreeIndex tree,long id,long parentId,int maximumEntries){
+        this(maximumEntries);
+        this.tree=tree;
+        this.id=id;
+        this.parentId=parentId;
+    }
+
+    /**
+     * Constructor
+     * 
+     * @param maximumEntries
+     */
+    public TreePage(int maximumEntries){
+        this.maximumEntries=maximumEntries;
+        this.treeEntries=new ArrayList<TreeEntry>(maximumEntries);
+    }
+
+    public String toString(){
+        return "TreePage["+getId()+"]parent="+getParentId();
+    }
+
+    public boolean equals(Object o){
+        boolean result=false;
+        if(o instanceof TreePage){
+            TreePage other=(TreePage)o;
+            result=other.id==id;
+        }
+        return result;
+    }
+
+    public int hashCode(){
+        return (int)id;
+    }
+
+    boolean isActive(){
+        return this.active;
+    }
+
+    void setActive(boolean active){
+        this.active=active;
+    }
+
+    long getNextFreePageId(){
+        return this.nextFreePageId;
+    }
+
+    void setNextFreePageId(long nextPageId){
+        this.nextFreePageId=nextPageId;
+    }
+
+    long getId(){
+        return id;
+    }
+
+    void setId(long id){
+        this.id=id;
+    }
+
+    void write(Marshaller keyMarshaller,DataOutput dataOut) throws IOException{
+        writeHeader(dataOut);
+        dataOut.writeInt(treeEntries.size());
+        for(TreeEntry entry:treeEntries){
+            entry.write(keyMarshaller,dataOut);
+        }
+    }
+
+    void read(Marshaller keyMarshaller,DataInput dataIn) throws IOException{
+        readHeader(dataIn);
+        int size=dataIn.readInt();
+        treeEntries.clear();
+        for(int i=0;i<size;i++){
+            TreeEntry entry=new TreeEntry();
+            entry.read(keyMarshaller,dataIn);
+            treeEntries.add(entry);
+        }
+    }
+
+    void readHeader(DataInput dataIn) throws IOException{
+        active=dataIn.readBoolean();
+        leaf=dataIn.readBoolean();
+        setParentId(dataIn.readLong());
+        nextFreePageId=dataIn.readLong();
+    }
+
+    void writeHeader(DataOutput dataOut) throws IOException{
+        dataOut.writeBoolean(isActive());
+        dataOut.writeBoolean(isLeaf());
+        dataOut.writeLong(getParentId());
+        dataOut.writeLong(nextFreePageId);
+    }
+
+    boolean isEmpty(){
+        return treeEntries.isEmpty();
+    }
+
+    boolean isFull(){
+        return(treeEntries.size()>=maximumEntries);
+    }
+
+    boolean isRoot(){
+        return getParentId()<0;
+    }
+
+    boolean isLeaf(){
+        if(treeEntries.isEmpty()){
+            leaf=true;
+        }
+        return leaf;
+    }
+
+    boolean isUnderflowed(){
+        return treeEntries.size()<(maximumEntries/2);
+    }
+
+    boolean isOverflowed(){
+        return treeEntries.size()>maximumEntries;
+    }
+
+    void setLeaf(boolean newValue){
+        this.leaf=newValue;
+    }
+
+    TreePage getParent() throws IOException{
+        return tree.lookupPage(parentId);
+    }
+
+    long getParentId(){
+        return parentId;
+    }
+
+    void setParentId(long newId) throws IOException{
+        if(newId==this.id){
+            throw new IllegalStateException("Cannot set page as a child of itself "+this+"
trying to set parentId = "
+                    +newId);
+        }
+        this.parentId=newId;
+        tree.writePage(this);
+    }
+
+    List<TreeEntry> getEntries(){
+        return treeEntries;
+    }
+
+    void setEntries(List<TreeEntry> newEntries){
+        this.treeEntries=newEntries;
+    }
+
+    int getMaximumEntries(){
+        return this.maximumEntries;
+    }
+
+    void setMaximumEntries(int maximumEntries){
+        this.maximumEntries=maximumEntries;
+    }
+
+    int size(){
+        return treeEntries.size();
+    }
+
+    TreeIndex getTree(){
+        return this.tree;
+    }
+
+    void setTree(TreeIndex tree){
+        this.tree=tree;
+    }
+
+    void reset() throws IOException{
+        treeEntries.clear();
+        setParentId(TreeEntry.NOT_SET);
+        setNextFreePageId(TreeEntry.NOT_SET);
+        setLeaf(true);
+    }
+
+    public TreeEntry find(TreeEntry key) throws IOException{
+        int low=0;
+        int high=size()-1;
+        long pageId=-1;
+        while(low<=high){
+            int mid=(low+high)>>1;
+            TreeEntry te=getTreeEntry(mid);
+            int cmp=te.compareTo(key);
+            if(cmp==0){
+                return te;
+            }else if(cmp<0){
+                low=mid+1;
+                pageId=te.getNextPageId();
+            }else{
+                high=mid-1;
+                pageId=te.getPrevPageId();
+            }
+        }
+        TreePage page=tree.lookupPage(pageId);
+        if(page!=null){
+            return page.find(key);
+        }
+        return null;
+    }
+
+    TreeEntry put(TreeEntry newEntry) throws IOException{
+        TreeEntry result=null;
+        if(isRoot()){
+            if(isEmpty()){
+                insertTreeEntry(0,newEntry);
+            }else{
+                result=doInsert(null,newEntry);
+            }
+        }else{
+            throw new IllegalStateException("insert() should not be called on non root page
- "+this);
+        }
+        return result;
+    }
+
+    void remove(TreeEntry entry) throws IOException{
+        if(isRoot()){
+            if(!isEmpty()){
+                doRemove(entry);
+            }
+        }else{
+            throw new IllegalStateException("remove() should not be called on non root page");
+        }
+    }
+
+    private TreeEntry doInsert(Flavour flavour,TreeEntry newEntry) throws IOException{
+        TreeEntry result=null;
+        TreePageEntry closest=findClosestEntry(newEntry);
+        if(closest!=null){
+            TreeEntry closestEntry=closest.getTreeEntry();
+            TreePage closestPage=closest.getTreePage();
+            int cmp=closestEntry.compareTo(newEntry);
+            if(cmp==0){
+                // we actually just need to pass back the value
+                long oldValue=closestEntry.getIndexOffset();
+                closestEntry.setIndexOffset(newEntry.getIndexOffset());
+                newEntry.setIndexOffset(oldValue);
+                result=newEntry;
+                save();
+            }else if(closestPage!=null){
+                result=closestPage.doInsert(closest.getFlavour(),newEntry);
+            }else{
+                if(!isFull()){
+                    insertTreeEntry(closest.getIndex(),newEntry);
+                    save();
+                }else{
+                    doOverflow(flavour,newEntry);
+                }
+            }
+        }else{
+            if(!isFull()){
+                doInsertEntry(newEntry);
+                save();
+            }else{
+                // need to insert the new entry and propogate up the hightest value
+                doOverflow(flavour,newEntry);
+            }
+        }
+        return result;
+    }
+
+    private TreePage doOverflow(Flavour flavour,TreeEntry newEntry) throws IOException{
+        TreePage result=this;
+        TreeEntry theEntry=newEntry;
+        if(!isFull()){
+            doInsertEntry(newEntry);
+            save();
+        }else{
+            if(!isRoot()&&flavour!=null){
+                // we aren't the root, but to ensure the correct distribution we need to
+                // insert the new entry and take a node of the end of the page
+                // and pass that up the tree to find a home
+                doInsertEntry(newEntry);
+                if(flavour==Flavour.LESS){
+                    theEntry=removeTreeEntry(0);
+                    theEntry.reset();
+                    theEntry.setNextPageId(getId());
+                }else{
+                    theEntry=removeTreeEntry(size()-1);
+                    theEntry.reset();
+                    theEntry.setPrevPageId(getId());
+                }
+                save();
+                
+                result=getParent().doOverflow(flavour,theEntry);
+                if (!theEntry.equals(newEntry)) {
+                    //the newEntry stayed here
+                    result = this;
+                }
+            }else{
+                // so we are the root and need to split
+                doInsertEntry(newEntry);
+                int midIndex=(size()/2);
+                TreeEntry midEntry=removeTreeEntry(midIndex);
+                List<TreeEntry> subList=getSubList(midIndex,size());
+                removeAllTreeEntries(subList);
+                TreePage newRoot=tree.createRoot();
+                newRoot.setLeaf(false);
+                this.setParentId(newRoot.getId());
+                save(); // we are no longer root - need to save - we maybe looked up v. soon!
+                TreePage rightPage=tree.createPage(newRoot.getId());
+                rightPage.setEntries(subList);
+                rightPage.checkLeaf();
+                resetParentId(rightPage.getId(),rightPage.getEntries());
+                midEntry.setNextPageId(rightPage.getId());
+                midEntry.setPrevPageId(this.getId());
+                newRoot.insertTreeEntry(0,midEntry);
+                resetParentId(newRoot.getId(),newRoot.getEntries());
+                save();
+                rightPage.save();
+                newRoot.save();
+            }
+        }
+        return result;
+    }
+
+    private void doRemove(TreeEntry entry) throws IOException{
+        TreePageEntry closest=findClosestEntry(entry);
+        if(closest!=null){
+            TreeEntry closestEntry=closest.getTreeEntry();
+            if(closestEntry!=null){
+                TreePage closestPage=closest.getTreePage();
+                int cmp=closestEntry.compareTo(entry);
+                if(cmp==0){
+                    TreeEntry result=closest.getTreeEntry();
+                    int index=closest.getIndex();
+                    removeTreeEntry(index);
+                    save();
+                    // ensure we don't loose children
+                    doUnderflow(result,index);
+                }else if(closestPage!=null){
+                    closestPage.doRemove(entry);
+                }
+            }
+        }
+    }
+
+    /**
+     * @return true if the page is removed
+     * @throws IOException
+     */
+    private boolean doUnderflow() throws IOException{
+        boolean result=false;
+        boolean working=true;
+        while(working&&isUnderflowed()&&!isEmpty()&&!isLeaf()){
+            int lastIndex=size()-1;
+            TreeEntry entry=getTreeEntry(lastIndex);
+            working=doUnderflow(entry,lastIndex);
+        }
+        if(isUnderflowed()&&isLeaf()){
+            result=doUnderflowLeaf();
+        }
+        return result;
+    }
+
+    private boolean doUnderflow(TreeEntry entry,int index) throws IOException{
+        boolean result=false;
+        // pull an entry up from a leaf to fill the empty space
+        if(entry.getNextPageId()!=TreeEntry.NOT_SET){
+            TreePage page=tree.lookupPage(entry.getNextPageId());
+            if(page!=null&&!page.isEmpty()){
+                TreeEntry replacement=page.removeTreeEntry(0);
+                TreeEntry copy=replacement.copy();
+                checkParentIdForRemovedPageEntry(copy,page.getId(),getId());
+                if(!page.isEmpty()){
+                    copy.setNextPageId(page.getId());
+                    page.setParentId(this.id);
+                }else{
+                    page.setLeaf(true);
+                }
+                int replacementIndex=doInsertEntry(copy);
+                if(page.doUnderflow()){
+                    // page removed so update our replacement
+                    resetPageReference(replacementIndex,copy.getNextPageId());
+                    copy.setNextPageId(TreeEntry.NOT_SET);
+                }else{
+                    page.save();
+                }
+                save();
+                result=true;
+            }
+        }
+        // ensure we don't loose previous bit of the tree
+        if(entry.getPrevPageId()!=TreeEntry.NOT_SET){
+            TreeEntry prevEntry=(index>0)?getTreeEntry(index-1):null;
+            if(prevEntry==null||prevEntry.getNextPageId()!=entry.getPrevPageId()){
+                TreePage page=tree.lookupPage(entry.getPrevPageId());
+                if(page!=null&&!page.isEmpty()){
+                    TreeEntry replacement=page.removeTreeEntry(page.getEntries().size()-1);
+                    TreeEntry copy=replacement.copy();
+                    // check children pages of the replacement point to the correct place
+                    checkParentIdForRemovedPageEntry(copy,page.getId(),getId());
+                    if(!page.isEmpty()){
+                        copy.setPrevPageId(page.getId());
+                    }else{
+                        page.setLeaf(true);
+                    }
+                    insertTreeEntry(index,copy);
+                    TreePage landed=null;// if we overflow - the page the replacement ends
up on
+                    TreeEntry removed=null;
+                    if(isOverflowed()){
+                        TreePage parent=getParent();
+                        if(parent!=null){
+                            removed=getTreeEntry(0);
+                            Flavour flavour=getFlavour(parent,removed);
+                            if(flavour==Flavour.LESS){
+                                removed=removeTreeEntry(0);
+                                landed=parent.doOverflow(flavour,removed);
+                            }else{
+                                removed=removeTreeEntry(size()-1);
+                                landed=parent.doOverflow(Flavour.MORE,removed);
+                            }
+                        }
+                    }
+                    if(page.doUnderflow()){
+                        if(landed==null||landed.equals(this)){
+                           landed=this;
+                        }
+                        
+                        resetPageReference(copy.getNextPageId());
+                        landed.resetPageReference(copy.getNextPageId());
+                        copy.setPrevPageId(TreeEntry.NOT_SET);
+                        landed.save();
+                    }else{
+                        page.save();
+                    }
+                    save();
+                    result=true;
+                }
+                // now we need to check we haven't overflowed this page
+            }
+        }
+        if(!result){
+            save();
+        }
+        // now see if we need to save this page
+        result|=doUnderflowLeaf();
+        save();
+        return result;
+    }
+
+    private boolean doUnderflowLeaf() throws IOException{
+        boolean result=false;
+        // if we have unerflowed - and we are a leaf - push entries further up the tree
+        // and delete ourselves
+        if(isUnderflowed()&&isLeaf()){
+            List<TreeEntry> list=new ArrayList<TreeEntry>(treeEntries);
+            treeEntries.clear();
+            for(TreeEntry entry:list){
+                // need to check for each iteration - we might get promoted to root
+                TreePage parent=getParent();
+                if(parent!=null){
+                    Flavour flavour=getFlavour(parent,entry);
+                    TreePage landedOn=parent.doOverflow(flavour,entry);
+                    checkParentIdForRemovedPageEntry(entry,getId(),landedOn.getId());
+                }
+            }
+            TreePage parent=getParent();
+            if(parent!=null){
+                parent.checkLeaf();
+                parent.removePageId(getId());
+                parent.doUnderflow();
+                parent.save();
+                tree.releasePage(this);
+                result=true;
+            }
+        }
+        return result;
+    }
+
+    private Flavour getFlavour(TreePage page,TreeEntry entry){
+        Flavour result=null;
+        if(page!=null&&!page.getEntries().isEmpty()){
+            TreeEntry last=page.getEntries().get(page.getEntries().size()-1);
+            if(last.compareTo(entry)>0){
+                result=Flavour.MORE;
+            }else{
+                result=Flavour.LESS;
+            }
+        }
+        return result;
+    }
+
+    private void checkLeaf(){
+        boolean result=false;
+        for(TreeEntry entry:treeEntries){
+            if(entry.hasChildPagesReferences()){
+                result=true;
+                break;
+            }
+        }
+        setLeaf(!result);
+    }
+
+    private void checkParentIdForRemovedPageEntry(TreeEntry entry,long oldPageId,long newPageId)
throws IOException{
+        TreePage page=tree.lookupPage(entry.getPrevPageId());
+        if(page!=null&&page.getParentId()==oldPageId){
+            page.setParentId(newPageId);
+            page.save();
+        }
+        page=tree.lookupPage(entry.getNextPageId());
+        if(page!=null&&page.getParentId()==oldPageId){
+            page.setParentId(newPageId);
+            page.save();
+        }
+    }
+
+    private void removePageId(long pageId){
+        for(TreeEntry entry:treeEntries){
+            if(entry.getNextPageId()==pageId){
+                entry.setNextPageId(TreeEntry.NOT_SET);
+            }
+            if(entry.getPrevPageId()==pageId){
+                entry.setPrevPageId(TreeEntry.NOT_SET);
+            }
+        }
+    }
+
+    private TreePageEntry findClosestEntry(TreeEntry key) throws IOException{
+        TreePageEntry result=null;
+        TreeEntry treeEntry=null;
+        Flavour flavour=null;
+        long pageId=-1;
+        int low=0;
+        int high=size()-1;
+        int mid=low;
+        while(low<=high){
+            mid=(low+high)>>1;
+            treeEntry=getTreeEntry(mid);
+            int cmp=treeEntry.compareTo(key);
+            if(cmp<0){
+                low=mid+1;
+                pageId=treeEntry.getNextPageId();
+                flavour=Flavour.LESS;
+            }else if(cmp>0){
+                high=mid-1;
+                pageId=treeEntry.getPrevPageId();
+                flavour=Flavour.MORE;
+            }else{
+                // got exact match
+                low=mid;
+                break;
+            }
+        }
+        if(treeEntry!=null){
+            TreePage treePage=tree.lookupPage(pageId);
+            result=new TreePageEntry(treeEntry,treePage,flavour,low);
+        }
+        return result;
+    }
+
+    private int doInsertEntry(TreeEntry newEntry) throws IOException{
+        int low=0;
+        int high=size()-1;
+        while(low<=high){
+            int mid=(low+high)>>1;
+            TreeEntry midVal=getTreeEntry(mid);
+            int cmp=midVal.compareTo(newEntry);
+            if(cmp<0)
+                low=mid+1;
+            else if(cmp>0)
+                high=mid-1;
+        }
+        insertTreeEntry(low,newEntry);
+        return low;
+    }
+
+    private void insertTreeEntry(int index,TreeEntry entry) throws IOException{
+        int p=index-1;
+        int n=index;
+        TreeEntry prevEntry=(p>=0&&p<treeEntries.size())?treeEntries.get(p):null;
+        TreeEntry nextEntry=(n>=0&&n<treeEntries.size())?treeEntries.get(n):null;
+        if(prevEntry!=null){
+            if(prevEntry.getNextPageId()==entry.getNextPageId()){
+                prevEntry.setNextPageId(TreeEntry.NOT_SET);
+            }
+            if(entry.getPrevPageId()==TreeEntry.NOT_SET){
+                entry.setPrevPageId(prevEntry.getNextPageId());
+            }
+        }
+        if(nextEntry!=null){
+            if(nextEntry.getPrevPageId()==entry.getPrevPageId()){
+                nextEntry.setPrevPageId(TreeEntry.NOT_SET);
+            }
+            if(entry.getNextPageId()==TreeEntry.NOT_SET){
+                entry.setNextPageId(nextEntry.getPrevPageId());
+            }
+        }
+        addTreeEntry(index,entry);
+    }
+
+    private void resetPageReference(int index,long pageId){
+        int p=index-1;
+        int n=index;
+        TreeEntry prevEntry=(p>=0&&p<treeEntries.size())?treeEntries.get(p):null;
+        TreeEntry nextEntry=(n>=0&&n<treeEntries.size())?treeEntries.get(n):null;
+        if(prevEntry!=null){
+            if(prevEntry.getNextPageId()==pageId){
+                prevEntry.setNextPageId(TreeEntry.NOT_SET);
+            }
+        }
+        if(nextEntry!=null){
+            if(nextEntry.getPrevPageId()==pageId){
+                nextEntry.setPrevPageId(TreeEntry.NOT_SET);
+            }
+        }
+    }
+
+    private boolean resetPageReference(long pageId){
+        boolean updated=false;
+        for(TreeEntry entry:treeEntries){
+            if(entry.getPrevPageId()==pageId){
+                entry.setPrevPageId(TreeEntry.NOT_SET);
+                updated=true;
+            }
+            if(entry.getNextPageId()==pageId){
+                entry.setNextPageId(TreeEntry.NOT_SET);
+                updated=true;
+            }
+        }
+        return updated;
+    }
+
+    private void resetParentId(long newParentId,List<TreeEntry> entries) throws IOException{
+        Set<Long> set=new HashSet<Long>();
+        for(TreeEntry entry:entries){
+            if(entry!=null){
+                set.add(entry.getPrevPageId());
+                set.add(entry.getNextPageId());
+            }
+        }
+        for(Long pageId:set){
+            TreePage page=tree.lookupPage(pageId);
+            if(page!=null){
+                page.setParentId(newParentId);
+            }
+        }
+    }
+
+    private void addTreeEntry(int index,TreeEntry entry) throws IOException{
+        treeEntries.add(index,entry);
+    }
+
+    private TreeEntry removeTreeEntry(int index) throws IOException{
+        TreeEntry result=treeEntries.remove(index);
+        return result;
+    }
+
+    private void removeAllTreeEntries(List<TreeEntry> c){
+        treeEntries.removeAll(c);
+    }
+
+    private List<TreeEntry> getSubList(int from,int to){
+        return new ArrayList<TreeEntry>(treeEntries.subList(from,to));
+    }
+
+    private TreeEntry getTreeEntry(int index){
+        TreeEntry result=treeEntries.get(index);
+        return result;
+    }
+
+    void saveHeader() throws IOException{
+        tree.writePage(this);
+    }
+
+    void save() throws IOException{
+        tree.writeFullPage(this);
+    }
+
+    protected void dump() throws IOException{
+        System.out.println(this);
+        Set<Long> set=new HashSet<Long>();
+        for(TreeEntry entry:treeEntries){
+            if(entry!=null){
+                System.out.println(entry);
+                set.add(entry.getPrevPageId());
+                set.add(entry.getNextPageId());
+            }
+        }
+        for(Long pageId:set){
+            TreePage page=tree.lookupPage(pageId);
+            if(page!=null){
+                page.dump();
+            }
+        }
+    }
+}

Propchange: activemq/trunk/activemq-core/src/main/java/org/apache/activemq/kaha/impl/index/tree/TreePage.java
------------------------------------------------------------------------------
    svn:eol-style = native

Added: activemq/trunk/activemq-core/src/main/java/org/apache/activemq/kaha/impl/index/tree/TreePageEntry.java
URL: http://svn.apache.org/viewvc/activemq/trunk/activemq-core/src/main/java/org/apache/activemq/kaha/impl/index/tree/TreePageEntry.java?view=auto&rev=503176
==============================================================================
--- activemq/trunk/activemq-core/src/main/java/org/apache/activemq/kaha/impl/index/tree/TreePageEntry.java
(added)
+++ activemq/trunk/activemq-core/src/main/java/org/apache/activemq/kaha/impl/index/tree/TreePageEntry.java
Fri Feb  2 22:53:59 2007
@@ -0,0 +1,95 @@
+/**
+ * 
+ * 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.activemq.kaha.impl.index.tree;
+
+/**
+* A conglomarate used for return results from a tree lookup
+* 
+* @version $Revision: 1.1.1.1 $
+*/
+class TreePageEntry{
+
+    private TreeEntry treeEntry;
+    private TreePage treePage;
+    private TreePage.Flavour flavour;
+    private int index = -1;
+
+    TreePageEntry(TreeEntry treeEntry,TreePage treePage,TreePage.Flavour flavour, int index){
+        this.treeEntry = treeEntry;
+        this.treePage=treePage;
+        this.flavour=flavour;
+        this.index = index;
+    }
+
+    /**
+     * @return the flavour
+     */
+    TreePage.Flavour getFlavour(){
+        return this.flavour;
+    }
+
+    /**
+     * @param flavour the flavour to set
+     */
+    void setFlavour(TreePage.Flavour flavour){
+        this.flavour=flavour;
+    }
+
+    /**
+     * @return the treePage
+     */
+    TreePage getTreePage(){
+        return this.treePage;
+    }
+
+    /**
+     * @param treePage the treePage to set
+     */
+    void setTreePage(TreePage treePage){
+        this.treePage=treePage;
+    }
+
+    
+    /**
+     * @return the index
+     */
+    public int getIndex(){
+        return this.index;
+    }
+
+    
+    /**
+     * @param index the index to set
+     */
+    public void setIndex(int index){
+        this.index=index;
+    }
+
+    
+    /**
+     * @return the treeEntry
+     */
+    public TreeEntry getTreeEntry(){
+        return this.treeEntry;
+    }
+
+    
+    /**
+     * @param treeEntry the treeEntry to set
+     */
+    public void setTreeEntry(TreeEntry treeEntry){
+        this.treeEntry=treeEntry;
+    }
+}

Propchange: activemq/trunk/activemq-core/src/main/java/org/apache/activemq/kaha/impl/index/tree/TreePageEntry.java
------------------------------------------------------------------------------
    svn:eol-style = native

Modified: activemq/trunk/activemq-core/src/test/java/org/apache/activemq/kaha/MapContainerTest.java
URL: http://svn.apache.org/viewvc/activemq/trunk/activemq-core/src/test/java/org/apache/activemq/kaha/MapContainerTest.java?view=diff&rev=503176&r1=503175&r2=503176
==============================================================================
--- activemq/trunk/activemq-core/src/test/java/org/apache/activemq/kaha/MapContainerTest.java
(original)
+++ activemq/trunk/activemq-core/src/test/java/org/apache/activemq/kaha/MapContainerTest.java
Fri Feb  2 22:53:59 2007
@@ -40,7 +40,7 @@
     /*
      * Test method for 'org.apache.activemq.kaha.MapContainer.size()'
      */
-    public void testSize() throws Exception {
+    public void XtestSize() throws Exception {
         container.putAll(testMap);
         assertTrue(container.size()==testMap.size());
     }
@@ -48,14 +48,14 @@
     /*
      * Test method for 'org.apache.activemq.kaha.MapContainer.isEmpty()'
      */
-    public void testIsEmpty() throws Exception {
+    public void XtestIsEmpty() throws Exception {
        assertTrue(container.isEmpty());
     }
 
     /*
      * Test method for 'org.apache.activemq.kaha.MapContainer.clear()'
      */
-    public void testClear() throws Exception {
+    public void XtestClear() throws Exception {
         container.putAll(testMap);
         assertTrue(container.size()==testMap.size());
         container.clear();

Added: activemq/trunk/activemq-core/src/test/java/org/apache/activemq/kaha/impl/index/hash/HashTest.java
URL: http://svn.apache.org/viewvc/activemq/trunk/activemq-core/src/test/java/org/apache/activemq/kaha/impl/index/hash/HashTest.java?view=auto&rev=503176
==============================================================================
--- activemq/trunk/activemq-core/src/test/java/org/apache/activemq/kaha/impl/index/hash/HashTest.java
(added)
+++ activemq/trunk/activemq-core/src/test/java/org/apache/activemq/kaha/impl/index/hash/HashTest.java
Fri Feb  2 22:53:59 2007
@@ -0,0 +1,119 @@
+/**
+ * 
+ * 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.activemq.kaha.impl.index.hash;
+
+import java.io.File;
+import java.io.IOException;
+import junit.framework.TestCase;
+import org.apache.activemq.kaha.Store;
+import org.apache.activemq.kaha.impl.index.IndexItem;
+import org.apache.activemq.kaha.impl.index.IndexManager;
+
+/**
+ * Test a HashIndex
+ * 
+ */
+public class HashTest extends TestCase{
+
+    private static int COUNT=1000;
+    private HashIndex hashIndex;
+    private File directory;
+    private IndexManager indexManager;
+   
+
+    /**
+     * @throws java.lang.Exception
+     * @see junit.framework.TestCase#setUp()
+     */
+    protected void setUp() throws Exception{
+        super.setUp();
+        directory=new File("activemq-data");
+        directory.mkdirs();
+        indexManager=new IndexManager(directory,"im-hash-test","rw",null);
+        this.hashIndex=new HashIndex(directory,"testHash",indexManager);
+        this.hashIndex.setKeyMarshaller(Store.StringMarshaller);
+    }
+
+   
+    
+    public void testHashIndex() throws Exception{
+        doTest(300);
+        hashIndex.clear();
+        hashIndex.unload();
+        doTest(600);
+        hashIndex.clear();
+        hashIndex.unload();
+        doTest(1024*4);
+    }
+
+    public void doTest(int pageSize) throws Exception{
+        String keyRoot="key:";
+        hashIndex.setPageSize(pageSize);
+        this.hashIndex.load();
+        doInsert(keyRoot);
+        checkRetrieve(keyRoot);
+        doRemove(keyRoot);
+        doInsert(keyRoot);
+        doRemoveBackwards(keyRoot);
+    }
+
+    void doInsert(String keyRoot) throws Exception{
+        for(int i=0;i<COUNT;i++){
+            IndexItem value=indexManager.createNewIndex();
+            indexManager.storeIndex(value);
+            hashIndex.store(keyRoot+i,value);
+           
+        }
+    }
+
+    void checkRetrieve(String keyRoot) throws IOException{
+        for(int i=0;i<COUNT;i++){
+            IndexItem item=(IndexItem)hashIndex.get(keyRoot+i);
+            assertNotNull(item);
+        }
+    }
+
+    void doRemove(String keyRoot) throws Exception{
+        for(int i=0;i<COUNT;i++){
+            hashIndex.remove(keyRoot+i);
+        }
+        for(int i=0;i<COUNT;i++){
+            IndexItem item=(IndexItem)hashIndex.get(keyRoot+i);
+            assertNull(item);
+        }
+    }
+
+    void doRemoveBackwards(String keyRoot) throws Exception{
+        for(int i=COUNT-1;i>=0;i--){
+            hashIndex.remove(keyRoot+i);
+        }
+        for(int i=0;i<COUNT;i++){
+            IndexItem item=(IndexItem)hashIndex.get(keyRoot+i);
+            assertNull(item);
+        }
+    }
+
+    /**
+     * @throws java.lang.Exception
+     * @see junit.framework.TestCase#tearDown()
+     */
+    protected void tearDown() throws Exception{
+        super.tearDown();
+        File[] files=directory.listFiles();
+        for(File file:files){
+            file.delete();
+        }
+    }
+}

Propchange: activemq/trunk/activemq-core/src/test/java/org/apache/activemq/kaha/impl/index/hash/HashTest.java
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