Add multipart/form-data class. Fixed map issue.

src/main/java/com/kttdevelopment/simplehttpserver/FileRecord.java

@@ -0,0 +1,89 @@
+package com.kttdevelopment.simplehttpserver;
+
+import java.nio.charset.StandardCharsets;
+import java.util.*;
+
+/**
+ * This class represents on set of headers and parameters in a multipart/form-data that is expected of a file input.
+ *
+ * @see MultipartFormData
+ * @see Record
+ * @see com.kttdevelopment.simplehttpserver.Record.Header
+ * @since 4.0.0
+ * @version 4.0.0
+ * @author Ktt Development
+ */
+public class FileRecord extends Record {
+
+    private final String fileName, contentType;
+    private final byte[] bytes;
+
+    /**
+     * Creates a record from a map entry. Throws a {@link NullPointerException} if the entry doesn't have all the required fields for a {@link Record#Record(Map.Entry)}; and a filename and Content-Type field.
+     *
+     * @param entry map entry
+     *
+     * @since 4.0.0
+     * @author Ktt Development
+     */
+    @SuppressWarnings("rawtypes")
+    FileRecord(final Map.Entry<String,Map> entry){
+        super(entry);
+
+        Header header = Objects.requireNonNull(getHeader("Content-Disposition"));
+        fileName = Objects.requireNonNull(header.getParameter("filename"));
+        header = Objects.requireNonNull(getHeader("Content-Type"));
+        contentType = Objects.requireNonNull(header.getHeaderValue());
+        bytes = getValue().getBytes(StandardCharsets.UTF_8);
+    }
+
+    /**
+     * Returns the file name.
+     *
+     * @return file name
+     *
+     * @since 4.0.0
+     * @author Ktt Development
+     */
+    public final String getFileName(){
+        return fileName;
+    }
+
+    /**
+     * Returns the content type of the file.
+     *
+     * @return content type
+     *
+     * @since 4.0.0
+     * @author Ktt Development
+     */
+    public final String getContentType(){
+        return contentType;
+    }
+
+    /**
+     * Returns the file as bytes.
+     *
+     * @return file in bytes
+     *
+     * @see #getValue()
+     * @since 4.0.0
+     * @author Ktt Development
+     */
+    public final byte[] getBytes(){
+        return bytes;
+    }
+
+    @Override
+    public String toString(){
+        return
+            "FileRecord"    + '{' +
+            "name"          + '=' + '\'' + getName() + '\''                     + ", " +
+            "fileName"      + '=' + '\'' + fileName + '\''                      + ", " +
+            "contentType"   + '=' + '\'' + contentType + '\''                   + ", " +
+            "value"         + '=' + '\'' + Arrays.toString(bytes) + '\''     + ", " +
+            "headers"       + '=' + getHeaders() +
+            '}';
+    }
+
+}

src/main/java/com/kttdevelopment/simplehttpserver/MultipartFormData.java

@@ -0,0 +1,71 @@
+package com.kttdevelopment.simplehttpserver;
+
+import java.util.Collections;
+import java.util.Map;
+
+/**
+ * This class represents a POST request map as a multipart/form-data.
+ *
+ * @see SimpleHttpExchange
+ * @see Record
+ * @see FileRecord
+ * @since 4.0.0
+ * @version 4.0.0
+ * @author Ktt Development
+ */
+public class MultipartFormData {
+
+    private final Map<String,Record> records;
+
+    /**
+     * Creates a multipart/form-data.
+     *
+     * @param records map of records and record keys
+     *
+     * @see Record
+     * @see FileRecord
+     * @since 4.0.0
+     * @author Ktt Development
+     */
+    MultipartFormData(final Map<String,Record> records){
+        this.records = Collections.unmodifiableMap(records);
+    }
+
+    /**
+     * Returns the record for key or null if none is found. If the record is supposed to be a FileRecord then cast it to {@link FileRecord}.
+     *
+     * @param key record key
+     * @return {@link Record} or {@link FileRecord} or null if none is found.
+     *
+     * @see Record
+     * @see FileRecord
+     * @since 4.0.0
+     * @author Ktt Development
+     */
+    public final Record getRecord(final String key){
+        return records.get(key);
+    }
+
+    /**
+     * Returns all the records in the multipart/form-data;
+     *
+     * @return map of all records
+     *
+     * @see Record
+     * @see FileRecord
+     * @since 4.0.0
+     * @author Ktt Development
+     */
+    public final Map<String,Record> getRecords(){
+        return records;
+    }
+
+    @Override
+    public String toString(){
+        return
+            "MultipartFormData" + '{' +
+            "record"            + '=' + records +
+            '}';
+    }
+
+}

src/main/java/com/kttdevelopment/simplehttpserver/Record.java

@@ -0,0 +1,199 @@
+package com.kttdevelopment.simplehttpserver;
+
+import java.util.*;
+
+/**
+ * This class represents one set of headers and parameters in a multipart/form-data.
+ *
+ * @see MultipartFormData
+ * @see FileRecord
+ * @see Header
+ * @since 4.0.0
+ * @version 4.0.0
+ * @author Ktt Development
+ */
+public class Record {
+
+    private final Map<String,Header> headers;
+    private final String name, value;
+
+    /**
+     * Creates a record from a map entry. Throws a {@link NullPointerException} if the entry doesn't have a: header-name, header-value, and parameters field.
+     *
+     * @param entry map entry
+     *
+     * @since 4.0.0
+     * @author Ktt Development
+     */
+    @SuppressWarnings({"rawtypes", "unchecked"})
+    Record(final Map.Entry<String,Map> entry){
+        name  = Objects.requireNonNull(entry.getKey());
+        value = Objects.requireNonNull(entry.getValue().get("value").toString());
+
+        final Map<String,Header> headers = new HashMap<>();
+        Objects.requireNonNull((Map<String,Map>) entry.getValue().get("headers")).forEach((k, v) -> headers.put(
+            k,
+            new Header(
+                Objects.requireNonNull(v.get("header-name")).toString(),
+                Objects.requireNonNull(v.get("header-value")).toString(),
+                (Map) Objects.requireNonNull(v.get("parameters"))
+            )
+        ));
+        this.headers = Collections.unmodifiableMap(headers);
+    }
+
+    /**
+     * Returns form input name.
+     *
+     * @return form input name
+     *
+     * @since 4.0.0
+     * @author Ktt Development
+     */
+    public final String getName(){
+        return name;
+    }
+
+    /**
+     * Returns a specified header.
+     *
+     * @param key header key
+     * @return header
+     *
+     * @see Header
+     * @see #getHeaders()
+     * @since 4.0.0
+     * @author Ktt Development
+     */
+    public final Header getHeader(final String key){
+        return headers.get(key);
+    }
+
+    /**
+     * Returns all the headers.
+     *
+     * @return headers
+     *
+     * @see Header
+     * @see #getHeader(String)
+     * @since 4.0.0
+     * @author Ktt Development
+     */
+    public final Map<String,Header> getHeaders(){
+        return headers;
+    }
+
+    /**
+     * Returns the value as a string.
+     *
+     * @return value
+     *
+     * @since 4.0.0
+     * @author Ktt Development
+     */
+    public final String getValue(){
+        return value;
+    }
+
+    @Override
+    public String toString(){
+        return
+            "Record"    + '{' +
+            "name"      + '=' + '\'' + name + '\''  + ", " +
+            "value"     + '=' + '\'' + value + '\'' + ", " +
+            "headers"   + '=' + headers +
+            '}';
+    }
+
+    /**
+     * Represents a header in a multipart/form-data.
+     *
+     * @since 4.0.0
+     * @version 4.0.0
+     * @author Ktt Development
+     */
+    public static class Header {
+
+        private final String headerName, headerValue;
+        private final Map<String,String> headerParams;
+
+        /**
+         * Creates header.
+         *
+         * @param headerName header name
+         * @param headerValue header value
+         * @param headerParams header parameters
+         *
+         * @since 4.0.0
+         * @author Ktt Development
+         */
+        Header(final String headerName, final String headerValue, final Map<String,String> headerParams){
+            this.headerName     = headerName;
+            this.headerValue    = headerValue;
+            this.headerParams   = Collections.unmodifiableMap(headerParams);
+        }
+
+        /**
+         * Returns the header name
+         *
+         * @return header name
+         *
+         * @since 4.0.0
+         * @author Ktt Development
+         */
+        public final String getHeaderName(){
+            return headerName;
+        }
+
+        /**
+         * Returns the header value
+         *
+         * @return header value
+         *
+         * @since 4.0.0
+         * @author Ktt Development
+         */
+        public final String getHeaderValue(){
+            return headerValue;
+        }
+
+        /**
+         * Returns specific header parameter.
+         *
+         * @param key parameter key
+         * @return parameter value
+         *
+         * @see #getParameters()
+         * @since 4.0.0
+         * @author Ktt Development
+         */
+        public final String getParameter(final String key){
+            return headerParams.get(key);
+        }
+
+        /**
+         * Returns all the header parameters.
+         *
+         * @return header parameters
+         *
+         * @see #getParameter(String)
+         * @since 4.0.0
+         * @author Ktt Development
+         */
+        public final Map<String,String> getParameters(){
+            return headerParams;
+        }
+
+        @Override
+        public String toString(){
+            return
+                "Header"        + '{' +
+                "headerName"    + '=' + '\'' + headerName + '\''    + ", " +
+                "headerValue"   + '=' + '\'' + headerValue + '\''   + ", " +
+                "headerParams"  + '=' + headerParams +
+                '}';
+        }
+
+    }
+
+}