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‎students/1241588932/design-patterns-enan/pom.xml

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.coderising</groupId>
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<artifactId>design-patterns-enan</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<packaging>jar</packaging>
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<name>design-patterns-enan</name>
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<url>http://maven.apache.org</url>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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<dependencies>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.12</version>
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</dependency>
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<dependency>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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<version>1.16.16</version>
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<optional>true</optional>
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</dependency>
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</dependencies>
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<repositories>
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<repository>
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<id>aliyunmaven</id>
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<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
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</repository>
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</repositories>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>3.3</version>
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<configuration>
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<source>1.8</source>
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<target>1.8</target>
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<encoding>${project.build.sourceEncoding}</encoding>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</project>

‎students/1241588932/design-patterns-enan/src/main/java/first/TagBuilder.java

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package first;
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public class TagBuilder {
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private TagNode tagNode;
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private TagNode currentTagNode;
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private TagNode superTagNode;
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public TagBuilder(String tagName) {
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this.tagNode = new TagNode(tagName);
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this.currentTagNode = this.tagNode;
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this.superTagNode = null;
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}
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public TagBuilder addChild(String childTagName) {
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this.superTagNode = this.currentTagNode;
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TagNode tagNode = new TagNode(childTagName);
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this.currentTagNode.add(tagNode);
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this.currentTagNode = tagNode;
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return this;
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}
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public TagBuilder setAttribute(String key, String value) {
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this.currentTagNode.setAttribute(key, value);
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return this;
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}
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public TagBuilder addSibling(String siblingTagName) {
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TagNode tagNode = new TagNode(siblingTagName);
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this.superTagNode.add(tagNode);
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this.currentTagNode = tagNode;
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return this;
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}
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public TagNode build() {
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return tagNode;
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}
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}

‎students/1241588932/design-patterns-enan/src/main/java/first/TagBuilderTest.java

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package first;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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import static org.junit.Assert.assertEquals;
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public class TagBuilderTest {
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@Before
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public void setUp() throws Exception {
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}
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@After
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public void tearDown() throws Exception {
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}
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@Test
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public void testToXML() {
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TagBuilder builder = new TagBuilder("order");
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String xml = builder.addChild("line-items")
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.addChild("line-item").setAttribute("pid", "P3677").setAttribute("qty", "3")
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.addSibling("line-item").setAttribute("pid", "P9877").setAttribute("qty", "10")
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.build()
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.toXML();
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String expected = "<order>"
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+ "<line-items>"
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+ "<line-item pid=\"P3677\" qty=\"3\"/>"
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+ "<line-item pid=\"P9877\" qty=\"10\"/>"
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+ "</line-items>"
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+ "</order>";
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System.out.println(xml);
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assertEquals(expected, xml);
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}
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}

‎students/1241588932/design-patterns-enan/src/main/java/first/TagNode.java

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package first;
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import java.util.ArrayList;
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import java.util.List;
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public class TagNode {
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private String tagName;
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private String tagValue;
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private List<TagNode> children = new ArrayList<>();
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private List<Attribute> attributes = new ArrayList<>();
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public TagNode(String name){
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this.tagName = name;
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}
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public void add(TagNode child){
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this.children.add(child);
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}
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public void setAttribute(String name, String value) {
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Attribute attr = findAttribute(name);
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if(attr != null){
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attr.value = value;
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return;
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}
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attributes.add(new Attribute(name,value));
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}
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private Attribute findAttribute(String name){
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for(Attribute attr : attributes){
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if(attr.name.equals(name)){
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return attr;
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}
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}
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return null;
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}
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public void setValue(String value) {
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this.tagValue = value;
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}
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public String getTagName() {
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return tagName;
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}
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public List<TagNode> getChildren() {
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return children;
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}
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private static class Attribute{
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public Attribute(String name, String value) {
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this.name = name;
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this.value = value;
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}
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String name;
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String value;
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}
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public String toXML(){
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return toXML(this);
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}
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private String toXML(TagNode node){
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StringBuilder buffer = new StringBuilder();
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buffer.append("<").append(node.tagName);
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if(node.attributes.size()> 0){
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for(int i=0;i<node.attributes.size();i++){
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Attribute attr = node.attributes.get(i);
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buffer.append(" ").append(toXML(attr));
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}
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}
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if(node.children.size()== 0){
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buffer.append("/>");
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return buffer.toString();
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}
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buffer.append(">");
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for(TagNode childNode : node.children){
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buffer.append(toXML(childNode));
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}
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buffer.append("</").append(node.tagName).append(">");
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return buffer.toString();
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}
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private String toXML(Attribute attr){
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return attr.name+"=\""+attr.value + "\"";
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}
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}

‎students/1241588932/pom.xml renamed to ‎students/1241588932/ood-assignment-enan/pom.xml

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‎students/1241588932/src/main/java/com/coderising/ood/srp/config/Configuration.java renamed to ‎students/1241588932/ood-assignment-enan/src/main/java/com/coderising/ood/srp/config/Configuration.java

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‎students/1241588932/src/main/java/com/coderising/ood/srp/config/ConfigurationKeys.java renamed to ‎students/1241588932/ood-assignment-enan/src/main/java/com/coderising/ood/srp/config/ConfigurationKeys.java

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‎students/1241588932/src/main/java/com/coderising/ood/srp/dao/UserDao.java renamed to ‎students/1241588932/ood-assignment-enan/src/main/java/com/coderising/ood/srp/dao/UserDao.java

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‎students/1241588932/src/main/java/com/coderising/ood/srp/entity/Product.java renamed to ‎students/1241588932/ood-assignment-enan/src/main/java/com/coderising/ood/srp/entity/Product.java

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‎students/1241588932/src/main/java/com/coderising/ood/srp/entity/User.java renamed to ‎students/1241588932/ood-assignment-enan/src/main/java/com/coderising/ood/srp/entity/User.java

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‎students/1241588932/src/main/java/com/coderising/ood/srp/main.java renamed to ‎students/1241588932/ood-assignment-enan/src/main/java/com/coderising/ood/srp/main.java

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‎students/1241588932/src/main/java/com/coderising/ood/srp/service/IPromotionMail.java renamed to ‎students/1241588932/ood-assignment-enan/src/main/java/com/coderising/ood/srp/service/IPromotionMail.java

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‎students/1241588932/src/main/java/com/coderising/ood/srp/service/IReadProductConfig.java renamed to ‎students/1241588932/ood-assignment-enan/src/main/java/com/coderising/ood/srp/service/IReadProductConfig.java

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‎students/1241588932/src/main/java/com/coderising/ood/srp/service/IUserService.java renamed to ‎students/1241588932/ood-assignment-enan/src/main/java/com/coderising/ood/srp/service/IUserService.java

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‎students/1241588932/src/main/java/com/coderising/ood/srp/service/impl/PromotionMailImpl.java renamed to ‎students/1241588932/ood-assignment-enan/src/main/java/com/coderising/ood/srp/service/impl/PromotionMailImpl.java

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‎students/1241588932/src/main/java/com/coderising/ood/srp/service/impl/ReadProductConfigImpl.java renamed to ‎students/1241588932/ood-assignment-enan/src/main/java/com/coderising/ood/srp/service/impl/ReadProductConfigImpl.java

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‎students/1241588932/src/main/java/com/coderising/ood/srp/service/impl/UserServiceImpl.java renamed to ‎students/1241588932/ood-assignment-enan/src/main/java/com/coderising/ood/srp/service/impl/UserServiceImpl.java

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‎students/1241588932/src/main/java/com/coderising/ood/srp/util/DBUtil.java renamed to ‎students/1241588932/ood-assignment-enan/src/main/java/com/coderising/ood/srp/util/DBUtil.java

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‎students/1241588932/src/main/java/com/coderising/ood/srp/util/MailUtil.java renamed to ‎students/1241588932/ood-assignment-enan/src/main/java/com/coderising/ood/srp/util/MailUtil.java

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‎students/1241588932/src/main/resources/email_config.properties renamed to ‎students/1241588932/ood-assignment-enan/src/main/resources/email_config.properties

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‎students/1241588932/src/main/resources/product_promotion.txt renamed to ‎students/1241588932/ood-assignment-enan/src/main/resources/product_promotion.txt

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‎students/250103158/data-structure/answer/pom.xml

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.coderising</groupId>
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<artifactId>ds-answer</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<packaging>jar</packaging>
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<name>ds-answer</name>
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<url>http://maven.apache.org</url>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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<dependencies>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.12</version>
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</dependency>
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</dependencies>
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<repositories>
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<repository>
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<id>aliyunmaven</id>
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<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
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</repository>
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</repositories>
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</project>

‎students/250103158/data-structure/answer/src/main/java/com/coderising/download/DownloadThread.java

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package com.coderising.download;
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import com.coderising.download.api.Connection;
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public class DownloadThread extends Thread{
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Connection conn;
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int startPos;
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int endPos;
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public DownloadThread( Connection conn, int startPos, int endPos){
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this.conn = conn;
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this.startPos = startPos;
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this.endPos = endPos;
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}
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public void run(){
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}
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}

‎students/250103158/data-structure/answer/src/main/java/com/coderising/download/FileDownloader.java

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package com.coderising.download;
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import com.coderising.download.api.Connection;
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import com.coderising.download.api.ConnectionException;
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import com.coderising.download.api.ConnectionManager;
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import com.coderising.download.api.DownloadListener;
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public class FileDownloader {
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String url;
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DownloadListener listener;
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ConnectionManager cm;
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public FileDownloader(String _url) {
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this.url = _url;
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}
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public void execute(){
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// 在这里实现你的代码， 注意： 需要用多线程实现下载
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// 这个类依赖于其他几个接口, 你需要写这几个接口的实现代码
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// (1) ConnectionManager , 可以打开一个连接，通过Connection可以读取其中的一段（用startPos, endPos来指定）
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// (2) DownloadListener, 由于是多线程下载， 调用这个类的客户端不知道什么时候结束，所以你需要实现当所有
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// 线程都执行完以后， 调用listener的notifiedFinished方法， 这样客户端就能收到通知。
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// 具体的实现思路：
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// 1. 需要调用ConnectionManager的open方法打开连接， 然后通过Connection.getContentLength方法获得文件的长度
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// 2. 至少启动3个线程下载， 注意每个线程需要先调用ConnectionManager的open方法
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// 然后调用read方法， read方法中有读取文件的开始位置和结束位置的参数， 返回值是byte[]数组
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// 3. 把byte数组写入到文件中
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// 4. 所有的线程都下载完成以后， 需要调用listener的notifiedFinished方法
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// 下面的代码是示例代码， 也就是说只有一个线程， 你需要改造成多线程的。
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Connection conn = null;
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try {
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conn = cm.open(this.url);
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int length = conn.getContentLength();
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new DownloadThread(conn,0,length-1).start();
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} catch (ConnectionException e) {
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e.printStackTrace();
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}finally{
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if(conn != null){
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conn.close();
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}
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}
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}
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public void setListener(DownloadListener listener) {
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this.listener = listener;
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}
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public void setConnectionManager(ConnectionManager ucm){
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this.cm = ucm;
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}
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public DownloadListener getListener(){
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return this.listener;
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}
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}

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