[GEODE-33] - Adding geode-example module

Creating a simple example for replicated regions to test the proposed example model
Adding script tests
Adding server folders to gitignore
Adding gitignore and readme files

geode-examples/README.md

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+# Apache Geode examples
+
+This is the home of Apache Geode examples that are bundled with the project. Contributions<sup>[2]</sup> and corrections are as usual welcome and if you have any suggestions come talk to us at [[email protected]](mailto:[email protected]) or just submit a [pull request](https://github.com/apache/incubator-geode/pull/new/develop).
+
+## Example requirements
+
+All examples:
+ * Needs to be testable. (unit tests, integration tests or what's applicable) - Tests will ran through project CI.
+ * Should be `Gradle` projects or part of existing ones. <sup>There could be a few exceptions here, but community should have consensus to accept</sup>
+ * Have to follow code format & style from Apache Geode <sup>[1]</sup> guidelines.
+ * Should contain a `README.md` file with step-by-step instruction on how to setup and run. (Diagrams give extra credits).
+ * Donations need to be licensed through ASL 2.0 and contributors need to file an ICLA<sup>[3]</sup>
+
+## Structure
+
+### Quick start & Installation
+
+  * [How to Install](http://geode.docs.pivotal.io/docs/getting_started/installation/install_standalone.html)
+  * [Apache Geode in 15 minutes or Less](http://geode.docs.pivotal.io/docs/getting_started/15_minute_quickstart_gfsh.html)
+
+### Basics
+
+  * [Replicated Region]()
+  * Partitioned Region
+  * Persistence
+  * OQL (Querying)
+
+### Intermediate
+
+  * PDX & Serialization
+  * Functions
+  * CacheLoader & CacheWriter
+  * Listeners
+  * Async Event Queues
+  * Continuous Querying
+  * Transactions
+  * Eviction
+  * Expiration
+  * Overflow
+  * Security
+  * Off-heap
+
+### Advanced
+
+  * WAN Gateway
+  * Durable subscriptions
+  * Delta propagation
+  * Network partition detection
+  * D-lock
+  * Compression
+  * Resource manager
+  * PDX Advanced
+
+### Use cases & integrations
+
+ This section should have self contained little projects that illustrate a use case or integration with some other projects.
+
+  * SpringBoot Application
+  * HTTP Session replication
+  * Redis
+  * Memcached
+  * Spark Connector
+
+## References
+
+- [1] - https://cwiki.apache.org/confluence/display/GEODE/Criteria+for+Code+Submissions
+- [2] - https://cwiki.apache.org/confluence/display/GEODE/How+to+Contribute
+- [3] - http://www.apache.org/licenses/#clas

geode-examples/build.gradle

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+/*
+ * 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.
+ */
+
+
+subprojects {
+
+    apply plugin:'java'
+
+    repositories {
+        maven {
+            url "https://repository.apache.org/content/repositories/snapshots/"
+        }
+        mavenCentral()
+    }
+
+    dependencies {
+        compile "org.apache.geode:geode-core:$geodeVersion"
+//        testCompile "org.apache.geode:geode-junit:$geodeVersion"
+        testCompile "junit:junit:$junitVersion"
+        testCompile "org.mockito:mockito-core:$mockitocoreVersion"
+        compile "com.jayway.awaitility:awaitility:1.7.0"
+    }
+
+    task run(type: JavaExec) {
+        description = 'Run example'
+        def mainClass = rootProject.hasProperty('main') ? "${rootProject.getProperty('main')}" : 'Main'
+        main = "org.apache.geode.examples.${project.name}.$mainClass"
+        classpath = sourceSets.main.runtimeClasspath
+        standardInput = System.in
+        systemProperties = System.getProperties()
+        if (rootProject.hasProperty('args')) {
+            args = ["${rootProject.getProperty('args')}"]
+        }
+    }
+
+}
+

geode-examples/gradle.properties

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+#
+# 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.
+#
+geodeVersion = 1.0.0-incubating.M3-SNAPSHOT
+junitVersion = 4.12
+mockitocoreVersion = 1.10.19

geode-examples/gradle/wrapper/gradle-wrapper.properties

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+#Wed Jun 01 15:34:43 PDT 2016
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.9-bin.zip

geode-examples/gradlew

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+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"